variation and distribution laws 变化及分布规律
river bed variation and distribution 河床冲淤及其分布
distribution and variation 分布与变化
space distribution and variation 空间分异
spatial distribution and variation 空间分布与变化
distribution and variation characteristics 分布变化特征
The quantitative variation and distribution of the leaves on the canopy were studied too.
研究了树冠上叶量的变化及分布。
In order to make sure the magnetic field distribution around the magneto optical trap cold atoms, the weak variation and distribution around the zero point magnet field can be analyzed.
为了研究磁光阱冷原子团所在区域的磁场大小，从而得出磁场零点附近磁场的微弱变化及其分布。
PURPOSE: to study the stress variation and distribution of the periodontium and the tooth initial displacement when the lingual fixate forces were applied to the depressed periodontal height.
目的：研究牙周支持高度降低状态下施加舌向集中力时，牙周组织的应力变化、分布规律和牙的初始位移。
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