rn 是什么意思

	Rn ＝ radon 【化学】氡。

	1.	let us suppose that with n objects and only wish to arrange a row of r of them. (r≤n). 我们考虑从几个元素中只取r个（rn）排列一行的情形。
	2.	No . we assign only one rn number per company 不可以。一家公司只可以有一个rn代码。
	3.	Multi - solution of semilinear elliptic equation on rn 全空间上半线性椭圆方程的多解性
	4.	Rn or lpn administers medication to patient 正职护士或lpn对病患的药物管理
	5.	How long does it take to get an rn number 多长时间就可以得到rn代码？
	6.	The ranking of every branch rn sees in table 4 - 6 in detail 各分资源位指数排序详见表4 - 6 。
	7.	Your rn is subject to cancellation if you fail to do so 如果及时更新，您的rn代码就会取消。
	8.	Can i have more than one rn number 一家公司可以拥有多个rn代码吗？
	9.	Your new tortoise may have had rns and may now be a carrier 你的新龟可能患有rns或者携带细菌。
	10.	Positive solutions of some semilinear elliptic equations in rn 半空间上一类半线性椭圆方程的正解

rn是什么意思