What's the difference between crawler and tractor?

Crawler


Definition:

  • (n.) One who, or that which, crawls; a creeper; a reptile.

Example Sentences:

  • (1) The landmark move, widely rumoured after Sony’s The Amazing Spider-Man 2 received only middling reviews and picked up a franchise-worst box-office haul last year, also looks likely to mean the instalment of a new actor as the masked wall crawler.
  • (2) "The old internet is shrinking and being replaced by walled gardens over which Google's crawlers can't climb," he noted earlier this year , as Facebook prepared its flotation.
  • (3) Relative to the performance of crawlers, noncrawlers showed lower average and subtest-specific performance on selected measures of the Miller Assessment for Preschoolers.
  • (4) Creepers with a dissociated pattern of learning to sit and crawlers with muscular hypotonia were found to have an increased risk for later handicap.
  • (5) But Western countries have been slow to adopt this trend , with television shows like “Fear Factor” reliably triggering disgust in viewers by feeding squirming creepy crawlers live to contestants.
  • (6) The fliers showed higher superoxide dismutase and catalase activities and glutathione concentration than crawlers, whereas, the amount of inorganic peroxides (H2O2) and TBA-reactants was higher in the crawlers than in fliers.
  • (7) All houseflies lose flying ability prior to death, whereby, in an aging population, shorter-lived flies can be identified as flightless 'crawlers' from their longer-lived cohorts, the 'fliers'; the average lifespan of crawlers is about one-third shorter than the fliers.
  • (8) Life expectancy of crawlers is about one-third shorter than that of the fliers.
  • (9) The children of each type were divided into two groups according to the ability of locomotion at the age of 4 years; S- I: 6 walkers, S- II: 9 crawler, A- I: 11 walkers and A- II: 10 crawler.
  • (10) Neither crawlers nor fliers exhibited any physical damage to their chemoreceptive tarsi, thereby ruling out starvation as a probable cause of death.
  • (11) I don’t want this, I have the abilities to work, why are they taking my job away?” Former detective superintendent Alan Caton, who led Ipswich’s response to the murders of five women who worked as prostitutes in 2006, emphasised a different approach, that police had successfully operated a “zero tolerance” approach to sex work after the murders – cracking down on kerb crawlers, while not prosecuting women.
  • (12) "For example, all the information in apps – that data is not crawlable by web crawlers.
  • (13) The department sent undercover officers, codenamed "rakers", into Muslim neighbourhoods, and ran a network of informants known as "mosque crawlers" to monitor sermons – even when there had been no evidence of criminality.
  • (14) A third study found that the quality of locomotion affected object permanence performance: Belly crawlers performed differently than infants with hands-and-knees or walker experience, insofar as they performed at prelocomotor levels regardless of weeks of locomotor experience.
  • (15) Webroot's Phileas web crawler has catalogued nearly 90,000 web pages that might be able to download malware on to PCs, often using exploits (security holes) to sneak their payloads into your web browser.
  • (16) A higher percentage in the index group were late crawlers (greater than 10 months), but similar proportions in both groups were bottom-shufflers or simply stood up and walked.
  • (17) Patterns of exploration varied with the information presented and differed for crawlers and walkers in the case of a deformable surface, as an affordance theory would predict.
  • (18) Compared with the standard, the deforming surface elicited longer latency, more exploratory behavior, and more displacement in walkers, but not in crawlers, suggesting that typical mode of locomotion influences perceived traversability.
  • (19) Actomyosin ATPase activity was higher in the fliers than in the crawlers of the same age.
  • (20) In an effort to uncover terrorist plots, so-called "rakers" or "mosque crawlers" – typically paid NYPD informants – were sent to Muslim student association meetings, businesses, universities, restaurants, whitewater rafting trips and more than 250 mosques in New York, New Jersey, Connecticut, Pennsylvania and elsewhere.

Tractor


Definition:

  • (n.) That which draws, or is used for drawing.
  • (n.) Two small, pointed rods of metal, formerly used in the treatment called Perkinism.

Example Sentences:

  • (1) Even the landscape is secretive: vast tracts of crown land and hidden valleys with nothing but a dead end road and lonely farmhouse, with a tractor and trailer pulled across the farmyard for protection.
  • (2) Potential dermal exposure from tractor-powered sprayers fitted with conventional hydraulic nozzles was lower than from knapsack sprayers, with exposure from a tractor-powered sprayer fitted with controlled-droplet application equipment intermediate in this regard.
  • (3) Optical tweezers are the 'tractor beams' of today's technology.
  • (4) Sales of tractors and other farm machinery are down by 70%, said Dave Dorsett of Reynolds farm equipment in Martinville.
  • (5) Potential dermal exposure was higher during mixing and loading all tractor-powered sprayers than during spraying.
  • (6) It is recommended that the government require all tractors sold to be equipped with ROPS as is currently the case in England and Sweden.
  • (7) On the second anniversary of their optimistic opening coalition press conference in the rose garden at Downing Street, Cameron and Clegg chose the stark symbolism of a tractor factory floor in Basildon to rededicate the coalition to its central painstaking work of rebalancing the economy and tackling the deficit.
  • (8) The night before the hearing, Patten sat down in front of the box to watch Mud Sweat and Tractors: the Story of Agriculture on BBC4.
  • (9) This month the concessions are being worked at a breakneck pace, with giant tractors and heavy machinery clearing trees, draining swamps and ploughing the land in time to catch the next growing season.
  • (10) 2) Many items on the checklist received a poor evaluations, indicating that there are many ergonomic problems with freight-container tractors.
  • (11) The latter are grown in fields on which oil-based fertilisers have been sprayed and which are ploughed by tractors that burn diesel.
  • (12) Eight people died in a traffic accident involving a tractor-trailer and ten autos.
  • (13) Enjoy riding through the natural beauty of pine forests and open heathland, before taking the Sand Worm (a tractor-trailer ride) across vast sand dunes to the colliding waves of the North and Baltic seas.
  • (14) Save a few tractors for dragging boats up the beach, there are no motor vehicles on Culatra.
  • (15) Tractors were involved in eight of these deaths, falls in four, power take-offs in three, and farm machinery in one.
  • (16) Tractors accounted for one half of these machinery-related deaths, followed by farm wagons, combines, and forklifts.
  • (17) These findings were considered to originate from the fact that the freight-container tractors had many ergonomic problems and the daily driving hours of many drivers were estimated to exceed the allowable vibration exposure time of the ISO.
  • (18) It is the equivalent of allowing a fleet of tractors to drag 30 tonnes of gear over a 150-metre wide swath of land for most days of the year.
  • (19) 'They don't use tractors, they use cow muck as fertiliser; and they have low-tech irrigation systems in Kenya.
  • (20) The hands were the most highly exposed part of the body during mixing and loading operations for all sprayers, and during spraying with tractor-powered sprayers.