1.63.Could you tell the main reason for crankcase explosion?

63. 你能说明轴箱爆炸的主要原因吗？

2.15.What is used for sealing between the crankcase and scavenging air box?

15.什么用于轴箱和扫气空气箱之间的密封？

3.If a warning of a crankcase explosion is received, what steps should be taken right away?

如果轴箱爆炸的警告，应立即采取什么措施？

4.What kind of precaution will you take to avoid a crankcase explosion?

为防止轴箱爆炸，你会采取哪些预防措施？

5.They are high pressure fuel oil pipe breaking, crankcase explosion and loss of lube oil pressure.

它们是高压燃油管破裂、轴箱爆炸和失去润滑油压力。