间隙大的就要用稠的,反之用稀的。
不过估计差一级问题也不大,在你能察觉出有差异前发动机早就该报费了。
间隙大的就要用稠的,反之用稀的。
不过估计差一级问题也不大,在你能察觉出有差异前发动机早就该报费了。
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