The results show that a longer expansion period and a better expansion could be achieved with the blast furnace slag as expansion agent.

结果表明，用钢渣做膨胀剂，膨胀龄期较长，膨胀状况良好。

youdao

The longer of expansion period, the smaller of dam center's maximum thermal stress; and the final residual thermal stress, which can benefit the concrete's anti-cracking quality.

膨胀期越长，坝中心温度应力最大值越小，最终残余温度应力越小，对坝体混凝土的抗裂性有利。

youdao

And that has been a period of expansion and of anchoring balance and higher frequencies.

会有一个扩张的时期，锚定在平衡和更高的频率。

youdao

The objects in the exhibit tell a story about government expansion during a difficult period in American history.

VOA: special.2009.01.02

From 1983 to the present as you just said, the economy has a long period of smooth, robust expansion interrupted by two very mild recessions.

第二时期是从1983年至今，正如你所说，经济长时间处于,平稳强健的发展状态,而只出现了两次轻度衰退。

斯坦福公开课 - 经济学课程节选

Economists had expected a 0.1% expansion during the period.

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During this period of expansion America's nuclear plants never had a significant accident.

FORBES: Magazine Article

The idea that, after a period of expansion, the brain pares back its workforce to become leaner and meaner is somehow rather appealing.

ECONOMIST: Memory formation