I could not tell if she actually fell asleep but I felt preciously touched and kept still.
我不清楚她是不是真的入睡了,但是,我真切地感受到了一种感动,并且,让这种感觉在心中延续了下去。
If the rolling dies are not preciously designed or the machining operation is not properly implemented, there is an influence on the profile accuracy, noise and service life of the workpiece gears.
若辊模设计不合理或加工方法不当,将影响工件齿轮的齿形精度,产生噪声,降低使用寿命。
The person who goes through the tribulation could realize the life preciously and value.
只有经历磨难的人才能认识生命的价值。
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