under contraction什么意思?打错了!是under constuction!抱歉!

under contraction什么意思?打错了!是under constuction!抱歉! contraction x contraction 请帮忙翻译一下shrinkage force 与contraction force什么区别? contraction ,abbreviation的区别? contraction shinkage 的区别 A contraction是什么意思 lanthanide contraction是什么意思 twitch contraction是什么意思 twitch contraction是什么意思 abbrevition与contraction的区别 under什么意思 under 什么意思 under appreciated什么意思 请问什么是张应力When the stretching direction is perpendicular to the direction of constant tensile stress,elongation of the films was observed under light irradiation.In contrast to the perpendicular case,the contraction of the films was obs under the mistletoe什么意思 under the table 什么意思 below;under 有什么区别?