This means that if the system could not perform the push or pop operation within the timelimit you specify, the operation should not execute at all.
这意味着，如果系统无法在指定的时间限制内执行添加和取出操作，就应该根本不执行操作。
2
The maximum number of Kanbans (the "energy" in the system) is fixed and physically conserves the upper limit of WIP at any given time.
在任何时候，看板(相当于系统中的“能量”)的最大数量都与在制品的上限保持守恒。
3
Because of these characteristics, the pressure measurement system with capillary tubing can be used without depth limit and can measure the downhole pressure continuously without time limit.