The water bed not only enables users to sleep comfortably, but also has a definite function of medical care.
该水床不但睡着舒适，而且具有一定的医疗保健作用。
Deformation and failure of slope is a complicated process. A definite function to predict deformation of slope is not available due to many influencing factors and undefined feature.
边坡变形与破坏是一个复杂的过程，其影响因素众多、且具有不确定性，一般很难用确定的函数式来预测。
On the micro level of the middle school course, both text curricula and teachers are of the definite function of controlling teaching process.
在中学课程的微观层次上，文本课程与教师都对教学过程有一定的控制作用。
The maximum velocity V in blasting vibration is a random variable, it has no definite function relation to Q and R in general meaning. So V only can be controlled in a confidence interval.
阐述了爆破地震波的质点最大振速V是一个随机变量，它与Q、R没有一般意义上确定的函数关系，因此振动只能控制在某一区间。
The maximum velocity V in blasting vibration is a random variable, it has no definite function relation to Q and R in general meaning. So V only can be controlled in a confidence interval.
阐述了爆破地震波的质点最大振速V是一个随机变量，它与Q、R没有一般意义上确定的函数关系，因此振动只能控制在某一区间。
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