The simple truth is that there is an optimum rate of replacement, a best time for replacement.

道理很简单，厂房、设备都有最适当的折旧率，也就是最佳的更新年限。

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Renter can complain to us or ask for replacement of driver if the driver is not satisfied, but renter should assure safety of driving and necessary time for replacement.

承租人对本公司配置司机的工作上不满，可投诉到我公司或要求更换驾驶员，但应保证行车安全及必要的调整时间。

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Objective To investigate the relation between the replacing time of water-sealed bottle and the thoracic cavity infections, and determine the optional time for replacement.

目的研究胸腔闭式引流一次性水封瓶更换时间与胸腔感染是否相关，以确定更换一次性水封瓶的时间。

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"I find it very frustrating that someone of that stature would not really have true knowledge of the numbers he is actually quoting on things, " Zelt told us, saying the average wait time for a knee replacement is actually 109 days, and a hip replacement is 91 days.

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Jerry Seinfeld performed twice, supposedly the second time as a replacement for someone who got sick just a few days before the event.

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It was time for a total knee replacement.

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