题目内容

（）playaveryimportantpartinhydraulicsystemsbypreventinginteractionbetweendifferentpartsofthehydrauliccircuit.

A. Motors
B. Checkvalves
C. Safetyvalves
D. Reducingvalve

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Aclaimforcargodamagesmaybeheldagainsttheshipownerifsuchdamageistheresultoffailureoftheship’sofficersto（）.

A. ensurethefitnessandsafetyofcargospaces
B. ensureadequatepackagingofthecargo
C. preventdelaysduetoquarantinerestrictions
D. correctalldefectsintheship'sconstruction

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（）istheproductionofpurewaterfromseawaterbyevaporationandre-condensing.

A. Evaporation
B. Circulation
Condensation
Distillation

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Whenavacuumboilingevaporatorworks,thehotjacketwaterwillpassoverthetubestackand（）theseawaterpassingthroughthetubes.

A. dispose
B. dissolve
C. heat
D. dissipates

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Withavacuumboilingevaporator,theremainderofseawaterfedtotheevaporatorispumpedoutby（）.

A. abrinepump
B. anairejector
C. afeedpump
D. distillatepump

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（）playaveryimportantpartinhydraulicsystemsbypreventinginteractionbetweendifferentpartsofthehydrauliccircuit.

A. Motors B. Checkvalves C. Safetyvalves D. Reducingvalve

Aclaimforcargodamagesmaybeheldagainsttheshipownerifsuchdamageistheresultoffailureoftheship’sofficersto（）.

（）istheproductionofpurewaterfromseawaterbyevaporationandre-condensing.

Whenavacuumboilingevaporatorworks,thehotjacketwaterwillpassoverthetubestackand（）theseawaterpassingthroughthetubes.

Withavacuumboilingevaporator,theremainderofseawaterfedtotheevaporatorispumpedoutby（）.

A. Motors
B. Checkvalves
C. Safetyvalves
D. Reducingvalve