To introduce and explain the structure and working method of a new type of fall-proofmachine, used in small mine, which meets the weight demand of the hoisting system.
介绍一种新型可以满足小型矿井提升系统重量要求的防坠器结构设计和工作原理；
2
The company might be very optimistic, but the ability of their machine to detect deception has not provided credible proof.
该公司可能非常乐观，但他们的机器检测欺骗的能力并没有提供可信的证据。
3
The new machine is supposed to be the solution to all our production problems, but the proof of the pudding is in the eating.