一般感觉包括_____、_____、___________.
查看答案
产品的重量偏大偏小都算不合格产品。
A. 正确
B. 错误
What is TRUE of pressure/vacuum valves? （）
A. They are designed to provide for the flow of small volumes of tank atmospheres caused by thermal variations in a cargo tank
B. They should operate in advance of the pressure/vacuum breakers
C. They should be kept in good working order by regular inspection and cleaning
D. All of the above
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