题目内容

回程皮带有水是造成皮带跑偏的主要原因。

A. 正确
B. 错误

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推钢式加热炉的推钢机可将整炉板坯向前推进。

A. 正确
B. 错误

什么是天线增益G?

对控制设备状态的定义包括ACTIVE,STANDBY,TEST三种方法。

A. 正确
B. 错误

Which of the following problems may occur if the opening pressure of a fuel injection nozzle is greater than specified by the engine manufacturer?()

A. The amount of fuel injected will be increased
B. The start of injection will be retarded
C. The nozzle will permit fuel to dribble
D. The spray pattern will be distorted

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