防污染装置被认为是最重要的设备。
Anti-pollution devices are considered the most important equipment.
B. Anti-pollution equipments are the most important .
C. Pollution devices are considered the most important equipment.
D. Safety devices are thought to be the most important equipment.
救生设备不齐全、不能正常使用。
A. The life boat equipment is not complete and operational.
B. The life boat equipment is not used properly.
C. The life jacket is not complete and operational.
D. The ship has serious deficiencies, it will be detained.
Which of the following words is 离心泵?
A. Gearwheel pump
B. Centrifugal pump
C. Ejector pump
D. Reciprocating pump
Which of the following words is 油水分离器?
A. Oil water separator
B. Oil separator
C. Purifier
D. Clarifier
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