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[单选题]In an auxiliary dies的答案
搜答案
In an auxiliary diesel engine, the reason for knurling the piston skirt is to（）
单选题
2022-03-16 08:52
A、improve skirt lubrication
B、allow for expansion
C、transmit forces evenly
D、improve the piston seal
查看答案
正确答案
A
试题解析
标签：
船舶电气与船舶安全
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