充气钻井液设备中,地面管汇主要用于连接与控制液体与气体的流量。
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借款用途必须明确,不得以“消费”、“周转”、“经营”等模糊概念代替。
A. 正确
B. 错误
Your vessel has a midship engine room and the cargo is concentrated in the end holds.The vessel is().
A. sagging with tensile stress on main deck
B. sagging with compressive stress on main deck
C. hogging with tensile stress on main deck
D. hogging with compressive stress on main deck
直接计算法适用于某些不便于制订消耗定额的材料,或耗用量不大的辅助材料。
A. 正确
B. 错误