The hydrogen gas is delivered as a reactant to the fuel cell from the ballast vessel at a pressure greater than or equal to the operating pressure of the fuel cell.
氢气作为反应物以大于或等于燃料电池的操作压力的压力从压载容器输送到燃料电池。
This article introduces the gas discharge lamps, such as fluorescence lamp, high pressure sodium lamp and metal halide lamp, and their basic requirements to the electronic ballast.
介绍了荧光灯、高压钠灯以及金属卤化物灯等气体放电灯和其对电子镇流器的基本要求。
In calibrating the leak, the pressure in the ballast chamber can be precisely controlled in such a way that the standard gas flow through the orifice is close or equal to the leak rate.
在漏孔校准过程中，通过调节稳压室中的压力，很容易使标准气体流量与漏孔漏率非常接近或相等，从而避免四极质谱计的非线性影响。
High pressure sodium (HPS) lamps driven by traditional electromagnetic ballast usually suffer from high current stress on lamp's electrodes during start up stage.
高压钠灯配接传统电感镇流器启动时灯电流对阴极冲击过大，缩短了高压钠灯的实际使用寿命。
In order to ensure ship safety, we must know the ship's ballast tank pressure loss.
为了确保更换压载水时船舶的安全，设计船舶时必须对船舶压载舱压力损失进行计算。
The traditional ballast starting, added high-pressure filament material suddenly without preheating, will take serious sputter and loss, and make the light turn black and scrap ahead of time.
传统的镇流器启动，未经预热突加高压灯丝材料会发生严重溅射损耗，导致灯管提前发黑报废。
All of the elements 1 to 4 are kept in out position by the hydraulic pressure that is exerted by the reservoir 5 on the bottom of the ballast 4 whose water was evacuated.
元件1到4的所有元件通过由在压载物4底部的蓄水池5施加的液压保持在外部位置，压载物4的水被排空。
Inspection air pressure test(with water head) for No1. water ballast tank(No15 block).
No1压载水舱（No.15分段）气压试验（压头试验）检查。
Inspection air pressure test(with water head) for No1. water ballast tank(No15 block).
No1压载水舱（No.15分段）气压试验（压头试验）检查。
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