R And we abbreviate that by calling it r, l by two quantum numbers, and an l as a function of little r, radius.
我们把它简称为,两个指定的量子数n和,它是半径小r的函数。
2
The effects of R/h ratio, L/R ratio and cone angle on the dynamic response of the conical shells are discussed in this section.
分析了圆锥壳结构的径厚比、长径比及锥角变化对结构应力响应的影响。
3
Apple Inc. 's Chief Executive Officer Steve Jobs is shown in this combination of file photographs dating (top row L to R) 2000, 2003, 2005, (bottom row L to R) 2006, 2008 and 2009.