培训工作的审定测验的英文：
validation of training

He is validating his findings.
他正在验证他的发现。

The validity of the hypothesis can be tested.
这种假说的可靠性是经得起考验的。

There is no question about the validity of the enterprise.
对这企业的合法性没有任何怀疑。

The experiment verifys the validity of algorithm.
仿真试验验证了该算法的有效性。

The simulation demonstrates the validness of the analysis.
仿真结果验证了理论分析的有效性。

the tail of a train
火车的尾部

explosive train
火药系

Is this dog trained?
这狗受过排便训练吗？

The train was in motion.
火车开动了。

This is a passenger train.
这是辆客运列车。