例如，测试4线电阻器时，则每个电阻器可能需要4个开关闸刀。
For example, testing four-wire resistors may require four switch poles per resistor.
所有已办理城市预先登记之乘客，亦必须于指定之关闸时间前登船。
Passengers who used city check-in service are also required to board the ship before gate close time.
利用这一常见的载体将有效的药物运送至耐药细胞中，这有点像让你的祖母装一车开关闸刀通过海关。
Using such a common transporter to ferry a potent medication inside a resistant cell is a bit like recruiting your grandmother to cart a load of switchblade knives through customs.
在详细分析多孔并联分段低压输水系统水力特性的基础上，建立了这一输水系统的非恒定流控制方程以及关闸和不关闸条件下的保水堰边界条件。
The stepped low-pressurized water diversion system with parallel multi-holes in regulation tanks can reduce the pressure of the conduit and effectively simplify the control of the flow discharge.
在详细分析多孔并联分段低压输水系统水力特性的基础上，建立了这一输水系统的非恒定流控制方程以及关闸和不关闸条件下的保水堰边界条件。
The stepped low-pressurized water diversion system with parallel multi-holes in regulation tanks can reduce the pressure of the conduit and effectively simplify the control of the flow discharge.
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