所以，从劳动力套利的方法中获取的利益已经开始收缩，根据波士顿咨询集团最新的研究，在某种情况下已经到了没有利润可图的境地。
So the gains from Labour arbitrage are starting to shrink, in some cases to the point of irrelevance, according to a new study by BCG.
银盐全息干版的乳胶收缩将导致其记录的反射全息图再现光的波长漂移。
Drift of reconstructing wavelength of volume holograms may occur because of the emulsion shrink of silver salt holographic plate.
文中还应用了图象跟踪、编码及扩展和收缩等技术，抽取出识别所必需的图象特征。
The techniques of image tracing, encoding and spread and contract are used to extract the essential picture feature for recognition.
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