The motor on the spot is in operation in the random failure period and therefore its failure rate is approximately a constant.
现场使用的电机基本运行在偶然失效阶段，因而其失效率近似为一常数。
When concentration of toluene was constant, the lag period of TCE increased, and the rate and extent of degradation decreased with the concentration of TCE increasing.
当甲苯初始质量浓度一定，TCE质量浓度增加时，TCE降解之前的滞后期延长，且降解速率和降解程度减小。
The pattern of the progressive evolution of offset streams might indicate that the slip rate of the fault in the same place is relatively constant during a certain period.
断错水系的演化图象则进一步提供了在一定时段内，同一地点滑动速率基本稳定的线索。
After a initial transient, "burst effect", the drug was released continuously from the device at a constant rate for a long period of time.
本给药系统在“漏槽”状态下测定释放速度，经短时间的较快释放后可维持长期的零级速度。
Under production with constant pressure, the pressure loss in the wellbore has obvious effect on the production rate at the initial period.
当定压生产时，井筒压降损失在生产初期对产量影响较为明显。
Under production with constant pressure, the pressure loss in the wellbore has obvious effect on the production rate at the initial period.
当定压生产时，井筒压降损失在生产初期对产量影响较为明显。
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