也正因为水泥的普遍应用,一些公司已经聚焦于此,希望寻求适当途径来减少或改变水泥对气候变化所起到的消极作用。
Because it's so ubiquitous, cement has become a focus for a handful of companies hoping to find ways to reduce or reverse its role as a climate change villain.
发现适当降低聚焦加热灯强度、提高衬底加热温度可以降低固化前沿温度梯度,从而降低亚晶界等缺陷密度。
It is found that the temperature gradient of solidifying front edge could be reduced by reducing focused lamp intensity and increasing substrate temperature.
应用在时频空间皆具有良好聚焦特性的小波包,以适当频率带宽,对故障后暂态电气量进行分解。
Wavelet packets with the advantage of time frequency zoom is used in this paper to decompose the post fault transient electrical quantities by the proper frequency span.
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