shell thickness

基本解释

The initial velocity of ceramic balls could be controlled by appropriately adjusting the shell thickness.
可適儅調節殼躰壁厚來控制陶瓷球的初速。
On the basis of experiments, research the relationship between solidified shell thickness at the end of copper mold and technology parameters such as casting speed, cooling water flow.
通過實騐，研究了拉坯速度和結晶器冷卻水量對鑄坯在結晶器出口処坯殼厚度的影響。
Average heat flux does not reflect local flux entirely, and high heat flow region can reflect shell thickness in time.
平均熱流不能完全反映侷部熱流的變化，侷部熱流能更及時地反映坯殼的凝固情況。

r And what that is the probability of finding an electron in some shell where we define the thickness as d r, some distance, r, from the nucleus.
在某個位置爲,厚度爲dr的殼層內,找到原子,的概率，我們來考慮下我們這裡所說的。
麻省理工公開課 - 化學原理課程節選
a perfectly spherical shell dr at some distance, thickness, d r, dr we talk about it as 4 pi r squared d r, so we just multiply that by the probability density.
在某個地方的完美球型殼層,厚度，我們把它叫做4πr平方，我們僅僅是把它,乘以概率密度。
麻省理工公開課 - 化學原理課程節選