It is usually set up a permanent expansion …

它与通常设置的永久性的伸缩…

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The rules of dimension change of plastic bonded explosive PBX TATB charges during thermal cycling were studied in detail, and the methods of reducing the permanent expansion were studied.

研究了塑料粘结炸药PB X TAT B药柱在热循环过程中的尺寸变化规律，探索了减小永久性长大的方法。

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With curbs on carbon emissions expected and an expansion under way into natural-gas and alternative energy, some firms are considering permanent cutbacks in their refining business.

随着有望限制碳排放，天然气和替代能源开始扩张，有些企业在考虑长期压缩炼油业务。

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It also said the school's governing body had lived with uncertainty about the intentions of the council and its temporary or permanent expansion for the past three years.

BBC: School child

"In 2010 they were given hope of permanent relief from expansion - they trusted the word of those who gave that promise and it should not be broken, " he said.

BBC: Heathrow expansion referendum call by Richmond Council

Originally in Southampton, it decamped a few miles east last year after failing to reach agreement with the town about an expansion that would allow it to show its permanent collection as well as temporary exhibitions.

WSJ: Free of the Mainstream | Yale University Art Gallery | Parrish Art Museum | By Eric Gibson