Because thalidomide causes severe birth defects if taken during pregnancy, this drug can only be obtained through a special program run by the drug company that makes it.
如果孕期服用沙立度胺可导致严重的先天性缺陷，这一药物只能通过生产它的药物公司的特殊程序获得。
Combined with engineering example the characteristics of auger drill and construction defects for special strata are discussed.
结合工程实例，论证了旋挖钻机的特点及在特殊地层的施工缺陷。
In this paper, we will introduce the computer programming methods of several special functions which are used in calculation of the surface defects' scattered field by T-matrix method.
本文介绍用t矩阵方法来计算表面缺陷散射场时所用到的几个特殊函数的计算机数值编程方法。
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