What's the difference between maintenance and manway?

Maintenance

Definition:

(n.) The act of maintaining; sustenance; support; defense; vindication.
(n.) That which maintains or supports; means of sustenance; supply of necessaries and conveniences.
(n.) An officious or unlawful intermeddling in a cause depending between others, by assisting either party with money or means to carry it on. See Champerty.

Example Sentences:

(1) Thirty-two patients (10 male, 22 female; age 37-82 years) undergoing maintenance haemodialysis or haemofiltration were studied by means of Holter device capable of simultaneously analysing rhythm and ST-changes in three leads.
(2) 5-Azacytidine (I) stability was increased approximately 10-fold over its stability in water or lactated Ringer injection by the addition of excess sodium bisulfite and the maintenance of pH approximately 2.5.
(3) Squadron Leader Kevin Harris, commander of the Merlins at Camp Bastion, the main British base in Helmand, praised the crews, adding: "The Merlins will undergo an extensive programme of maintenance and cleaning before being packed up, ensuring they return to the UK in good order."
(4) There is no evidence that health-maintenance organizations reduce admissions in discretionary or "unnecessary" categories; instead, the data suggest lower admission rates across the board.
(5) These results suggest that a certain minimum level of expression of c-myc is required for the maintenance of ras transformation in NIH 3T3 cells.
(6) Maintenance therapy was always steroid-free to start with (cyclosporin+azathioprine) but in almost one half of our oldest survivors, it failed to avoid rejection and we had to add low-dose oral steroids for at least several months.
(7) This quantitative characterization of the properties of conduction and refractoriness of both the accessory pathway and ventriculoatrial conduction system and the relation between these characteristics and the accessory pathway location in ART patients provides additional insight into the prerequisites for the initiation and maintenance of this rhythm disturbance.
(8) The last stems from trends such as declining birth rate, an increasingly mobile society, diminished importance of the nuclear family, and the diminishing attractiveness of professions involved with providing maintenance care.
(9) During anaesthesia with 60-70 per cent N2O in O2 and 0.2 per cent isoflurane, a maintenance dose (MD) of fentanyl was administered using a continuous variable-rate IV fentanyl infusion, supplemented by intermittent 50 micrograms IV boluses.
(10) To assess the role of amniotic fluid (AMF) in the maintenance of pregnancy, immunosuppressive effects of AMF were studied in vivo, and the mechanisms of suppressor activity were analyzed immunologically in vitro in the rat.
(11) The purpose of this study was to investigate a tumor cell vaccine delivered via peripheral lymphatics as maintenance therapy after induction of remission with chemotherapy.
(12) The changes in muscle activity had the same pattern and similar phase-frequency properties to those observed under analogous vestibular stimulation during the maintenance of steady posture.
(13) P-450 encoding structural genes but may rather be related to abnormalities in the function of regulatory systems of a higher order which may play a central role in the maintenance of cell homeostasis.
(14) Proper maintenance of body orientation was defined to be achieved if the net angular displacement of the head-and-trunk segment was zero during the flight phase of the long jump.
(15) Nitrous oxide (N2O) is frequently used for maintenance of anesthesia in research animals because of its minimal effect upon circulatory variables and the ability to rapidly alter its anesthetic concentration.
(16) Measurements were repeated at the end of an 8-week maintenance phase.
(17) After 40 programmed minutes of acquisition and 12 min of maintenance, without notice, both schedules changed to extinction for 28 min.
(18) After loss of permanent central incisors the treatment of choice could be either orthodontic closure or maintenance of the gap for a replacement-prosthetic, autotransplantation or implant.
(19) Intense staining for angiotensin-(1-7) immunoreactivity was demonstrable in brain areas related to the maintenance of hydromineral balance, suggesting the involvement of this peptide in this process.
(20) The clinical indications for ECT as a primary treatment of choice, a secondary treatment, and a maintenance or prophylactic treatment for depression are described.