In the air compressor demand is not high, the general use of the modulation control, that is, through the control of air inhaled compressor is to ensure that the system need air pressure.

在对空压机要求不高的情况下，一般采用调制式控制，即通过控制压缩机吸入空气的量来保证系统所需要的空气压力。

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For improve thrust loading and decrease fuel consume of the engine, propulsive system of the future demand the compressor in possession of higher pressure ratio and more efficiency.

未来飞机推进系统要求压气机的压比和效率均大大高于目前的使用水平，以提高发动机推重比，减小燃油消耗。

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To satisfy the demand of new technique of high pressure nontoxic gold leaching the automatic control system of field parameters based on IPC is investigated.

针对高压改性石硫合剂提金新工艺的要求，研究了基于IPC的现场参数的自动控制系统。

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However, since Brazil switched on more gas-fired thermal plants in October, to cope with growing demand and ease the pressure on the hydroelectric power system, costs have increased significantly.

BBC: Brazil drought stokes worries over energy shortages

The additional paying customers with what many believe will be a pent up demand for medical care service are already expected to stress the health care system, putting more pressure on primary care doctors like internists and family doctors.

FORBES: Docs Working Less As Flood Of New Patients Looms