It universally exists that injected pressure is high in a long time, injected water volume is low, the difference of injected pressure of each well is very large during oilfield development.

开发过程中普遍存在注水井长期注入压力居高不下、注入量低、单井注入压力差异大等问题。

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About half of all aluminium castings are made using high-pressure die-casting (HPDC), in which a molten aluminium alloy is injected under pressure into a steel mould, or die.

大约有一半的铸铝工艺是高压模铸(HPDC)，在这种工艺中，通过压力将液态铝合金注入钢模，或模具。

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In a diesel engine, there is no spark plug. Instead, diesel fuel is injected into the cylinder, and the heat and pressure of the compression stroke cause the fuel to ignite.

柴油发动机内没有火花塞，取而代之的是将柴油喷入发动机气缸，然后压缩冲程在高温高压下引起燃料点火。

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About 25, 000 wells a year are being fracked, a process in which water, chemicals and sand are injected at high pressure underground to release trapped natural gas.

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With the engine running, he can see on-screen how much fuel should be injected given X throttle pressure or Y coolant temperature.

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Next week, if all goes according to plan, a small mountain of snow will be melted, repeatedly sterilised and then injected in a high-pressure stream of near-boiling water to clear a bore-hole through the two miles of the ice-sheet.

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