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The shear lag coefficient is determined by the r atio between stress calculated by this method and stress decided by elementary b eam theory. 在两端简支的边界条件下采用分离变量法求解偏微分方程,得到用级数表示的应力解,然后根据剪力滞系数的定义即可得到组合箱梁翼板的剪力滞系数。
On the basis of mathematical statistic, using the method of multiple regression analysis, the practical calculating formula of the shear lag coefficient in thin-walled curved box girders is derived. 摘要基于数理统计的基本原理，运用多元回归分析方法，建立了曲线箱梁结构的剪力滞的实用计算公式。
There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
Be modest, otherwise you will lag behind. 要谦虚，否则就要落后。
There is a time lag of about 10 years. 有大约十年时间的间歇。
I felt completely disorientated with the jet lag. 我乘长途飞机後因生理节奏失调而感到昏昏沉沉的。
The children always lag behind when we go for a walk. 我们出去散步时，孩子们总是落在后面。
lag coefficient 滞后系数
If your payments of rent lag behind, you will be asked to leave. 你要是不能按时付房租，就要请你搬家。
shear lag coefficient 剪力滞系数
You'll lag behind unless you study harder. 你如不更加努力地学习就要掉队。
Let not a single classmate lag behind. 不要让一个同学掉队。
Some of the runner in the race begin to lag. 参加比赛的运动员中有一些开始落后了。
Increasing the total time lag is destabilizing. 增加总时滞将使稳定性降低。
We still lag behind in this respect. 在这方面，我们还比较落后。
Water has a variable coefficient of expansion. 水的膨胀系数是可变的。
Pascal published a treatus on binomial coefficient. 帕斯克发表了关于二项系数的论文。
They do not like to lag behind the others. 他们不愿意落在人后。
To fail to keep up a pace; lag behind. 落后跟不上步伐；落后
Cancel water vapour permeability coefficient. 取消了水蒸气渗透系数。