The principle of the elongation asynchronous rolling and the pattern of lengthwise gauge variation of strips have been studied.
本文针对异步恒延伸轧制的原理和带材纵向厚度精度的变化规律进行了研究；
Comparing people with the mutation and volunteers without the genetic variation helped the researchers better gauge long-term effects of drinking, they said.
研究者们说，比较基因突变的人群及没有基因突变的志愿者能帮助研究者们精确估计酒精的长期影响。
An advance multi-point bracing means is proposed to minish length variation of gauge blocks.
提出利用多点支撑法，减小量块长度变化量的测试方案。
An advance multi-point bracing means is proposed to minish length variation of gauge blocks.
提出利用多点支撑法，减小量块长度变化量的测试方案。
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