單項(xiàng)選擇題

In an automatic mooring winches, the wire is paid off the barrel at（） a tension and is recovered at（）tension.

A.lower；igher
B.maximum；higher
C.predetermined minimum；higher
D.predetermined maximum；lower

你可能感興趣的試題

When the power is shut off, the wire（）

A.becomes slack
B.can not be paid out unless the brake is overhauled or recover wire unless manually operated
C.will be let out because the brake is out of work
D.may be pay out due to no power

單項(xiàng)選擇題

For a flash type evaporator, a demister is located the condenser（）

A.After
B.before
C.inside
D.outside

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In an automatic mooring winches, the wire is paid off the barrel at（） a tension and is recovered at（）tension.

你可能感興趣的試題

When the power is shut off, the wire（）

For a flash type evaporator, a demister is located the condenser（）