There are several reasons for this, such as a breach in hygiene practices, a breakdown in processing equipment, an extreme weather event or deliberate tampering, to name a few.

这有多项原因，包括违反环境卫生做法、加工设备故障、极端天气事件或蓄意破坏等。

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Getting the digging and processing equipment to the site costs millions, and then tons of gold must be produced and preferably other valuable minerals must also be present for a mine to be profitable.

挖掘和处理设备就需要花掉数百万美元，要实现盈利就必须开采出成吨的金子，其他有价值的所含矿物也必须尽可能的被利用。

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The company has first class technology and advanced processing equipment at home and abroad.

公司拥有一流的技术力量和国内外先进的加工设备。

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Food-testing mobile laboratories and mobile workshops have been seen, as well as large containers with seed-processing equipment.

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Ivangorod's town council, for example, has fought a lengthy battle to clear some Danish sewage-processing equipment donated to it through customs.

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The Treasury blamed this delay on an unprecedented volume of participation by small investors, on failure of Congress to act in a timely fashion on the debt ceiling legislation in April, and on an unanticipated failure of word processing equipment used to prepare check schedules.

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