Don't try to force a lock-up in the excessiveclearance within the range not allowed.
千万不要试着去将多余的空隙在不允许的范围内之强制锁合。
2
Excessiveclearance will influence perforating effect while over smallness may lead to engineering accident easily.
射孔枪与套管之间的间隙过大会影响射孔效果，太小容易出现工程事故。
3
Excessiveclearance of mechanism joint pair will cause abnormal vibration and noise, accelerate fatigue and wear and seriously affect the dynamic performance of machine.