题目内容

门岗值班员遇到大件物品搬运时的操作流程什么?

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()是指轧件与轧辊接触面的水平投影,它取决于带钢和轧辊直径。

Prior to burning or welding on a fuel tank on a ship,regulations require that an inspection be made. An entry in the unofficial logbook is required if this inspection is made by().

A. a marine chemist
B. the Officer in Charge,Marine Inspection
C. the Master or person in charge of the ship
D. the National Fire Protection Associatio

高压操作使炉内压差降低的原因是()。

A. 冶炼强度降低
B. 风压降低
C. 煤气体积减少
D. 煤气分布合理

夫精明五色者,()也。五色()矣,其寿不久也。

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