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adj.合作的；共同作用的
n.[数]系数；率；协同因素
1、efficient───adj.有效率的；有能力的；生效的
2、inefficient───adj.无效率的，效率低的；无能的
3、coefficients───n.[数]系数（coefficient的复数形式）
4、-efficient───adj.有效率的；有能力的；生效的
5、cost-efficient───有成本效率的；本轻利厚的
6、perficient───很 完美
7、sufficient───adj.足够的；充分的
8、nonefficient───非有效
9、deficient───adj.不足的；有缺陷的；不充分的
1、The correlation coefficient, like the covariance, is a measure of the extent to which two measurement variables "vary together. "───与协方差一样，相关系数是描述两个测量值变量之间的离散程度的指标。
2、Sir Isaac Newton was one of the pioneers in investigating viscosity, and on his analysis depends the definition of the coefficient.───艾萨克·牛顿爵士是研究粘度的先驱者之一，粘性系数就是根据他的分析下的定义。
3、coefficient of compaction is 1.22 on the mechanical loader.───机械装载机的压实系数为1.22。
4、coupling coefficient of transformer relates the transforming efficiency. ───变压器的耦合系数与变压器的效率有关。
5、This coefficient was used to solve the heat transfer between the melt and cooling water, namely the heat transfer capacity of the mold.───该系数用于解决金属和冷却水之间的传热，即反映结晶器的传热能力。
6、So far the convective heat transfer coefficient of the building wall's exterior surface has not been studied systematically.───到目前为止建筑墙体外表面对流换热系数还没有得到XiTong的研究。
7、In many update steel structure codes, the restraining coefficient is often adopted in effective width approach to taken PAE into account.───目前许多国家的钢结构设计规范中，在计算受压板件的有效宽度时，常采用板组约束系数来考虑板组效应。
8、Only teak matches oak's expansion coefficient and stays watertight.───只有柚木才能达到橡木的膨胀系数，并保持水密性。
9、The concept of the buckling-strength coefficient to determine whether the local buckling occurs in the member is put forward.───为方便判断构件是否发生局部屈曲，提出了屈强系数的概念。