题目内容
润滑油在高温高压下必须有足够的粘度。
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轴向拉伸或压缩杆件，与横截面成（）的截面上切应力最大。
Although goods have been lost or damaged whilst in the custody of the Shipowner，（）not necessarily responsible，for his liability in respect of them may have been excluded by the rules of common law or by the express terms of the contract or by statute.
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不会导致分注井洗井不通的是（）
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