An alternative approach to alcohols having two identical r groups(q)is to disconnect both at once . 另一可供选用的，通向具有两个等同R基的醇（q）的办法是，将这两个R基一举全都切开。
Thus varying the nature of r from primary to secondary to tertiary alkyl results in increasing yields of the hydroxy ethers . 当R按伯、仲、叔烷的顺序递变，则所得羟基醚的产率就随之而增高。
His english was so good that he hardly had an accent, but it had an american inflection; he rolled his r's . 他的英语说得非常好，几乎不带一点乡音，不过，他的口音受到了美国英语的影响，在发r这个音时要卷舌头。
Second, since the radius vectors r to the extreme points of the ellipse satisfy(5. 3-12)they are parallel to the two allowed d vectors . 其次，因为到椭圆极值点的径向矢量r满足式（53-12），故这两个径向矢量与两个允许的D矢量平行。
The holographic process adjusts itself automatically so as to duplicate r or a independently for the exact form of the irregularly scattered field a' . 全息过程本身自动地进行调节，以此来为不规则散射场A'的精确形状分别复显出R或A。
Application of a kind of determinant n n matrix on r - field 阶实方阵行列式的应用
Price does not include r t airfare to salt lake city 费用不含由原居地飞盐湖城
I can hop r . a . m . while the data ' s being transferred 数据传输的时候我会监视内存
