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焊缝连接的密闭性好，结构刚度大，整体性好。
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螺栓连接分为普通螺栓连接和高强度螺栓连接
Directions: You are going to read a passage with 10 statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter.A woman's courage: Bringing yoga to men
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