... substantiation of claim,索赔证明 time keeping,工时记录 valuation of variation,变更估价 ...
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poor time keeping 时间管理能力差
time-keeping 维持时间 ; 计时 ; 而守时
time keeping system 时间记录系统 ; 守时系统
International Association for Time-Keeping 国际计时协会
Keeping Time 守时 ; 保存期 ; 需用时间
manual time-keeping 秒表计时 ; 人工计时
Time keeping Accuracy 平均日差 ; 守时精度
time-keeping clock 单片机守时钟
N-UNCOUNT Timekeeping is the process or activity of timing an event or series of events. 计时工作
Who did the timekeeping?
谁做了计时工作?
Galileo designed a clock using a pendulum as the time keeping element in 1635.
1635年,伽利略设计了一种利用摇锤来计时的钟表。
If kids have a hard time keeping up academically, they may need to drop an activity.
如果孩子在学业上要度过一个困难时期,他们需要放弃一些活动。
Stores in Korea and Japan have a hard time keeping the hip hop clothing on the racks!
韩国和日本的商店里hip hop服装总是被抢购一空。
They didn't violate any regulation at the time." But many Americans say they are outraged that executives were getting big bonuses while taxpayer dollars were keeping the firms alive.
VOA: standard.2010.07.23
So it's very important to be keeping in mind that any time you see a double bond, you have a pi bond there, so you're not going to see any rotation around the bond axis.
所以你们要记住,任何时候你们看到一个双键,这里面有π键,你们不会看到关于键轴的任何转动。
Isn't it difficult being a mother and a professor at the same time and keeping a balance between the two?
同时做母亲和教授是不是很困难呢?两者之间取得平衡不容易吧?
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