Because the two sets piston compressor is seven eightys last century, the product, and an ageing equipment, often appear to mechanical failure;

由于两台活塞压缩机是上世纪七、八十年代的产品，设备不断老化，经常出现机械故障；

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By replacement of rotary kiln tube body section solves the problems brought by ageing equipment, such a replacement with simple process and low engineering cost.

通过对回转窑筒体实施截体更换，解决了设备老化带来的问题，而且工艺简单，工程成本低。

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In most markets, but especially North America, the steep fall in fuel prices has restored some profitability to truck operators, and with it their ability to replace ageing equipment.

在多数市场，尤其是在北美，油价的骤降使得货车经营者再次有利可图。这也让他们有能力更换老化的设备。

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In most markets, but especially North America, the steep fall in fuel prices has restored some profitability to truck operators, and with it their ability to replace ageing equipment.

ECONOMIST: The truck industry

They pile the lobbying pressure on with warnings that incentives for investment need to keep coming, and under time pressure, if ageing equipment is to be used to squeeze more out of emptying reservoirs.

BBC: Buzzard platform in the North Sea

Messrs Paterson and Gordon also raise concerns that the transfer from Whitehall to Scotland of regulation, licensing, inspection and safety is a major undertaking, particularly in a mature region for oil and gas, with ageing equipment, hard-to-reach reserves and a looming boom in decommissioning.

BBC: Scottish independence: energy's alternating currents