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- Invasive methods mainly include amniocentesis (AC) and chorionic villous sampling (CVS). 迄今为止，孕早期获得胎儿细胞进行产前诊断的方法大体上分为两类：创伤性及非创伤性技术。
- chorionic villous sampling 绒毛膜取样(法)
- I spent a few days sampling the literature of social science. 我花了几天时间浏览有关社会科学的文献。
- Resembling the chorion; membranous. 类似绒毛膜的;膜的.
- A villous formation, surface, or coating. 绒毛状绒毛状的形态、表面或外层
- Resembling the chorion;membranous. 膜状的类似绒毛膜的;膜的
- The patient had a villous adenoma. 这个病人曾长过绒毛状腺瘤。
- Sterile ovary globose, densely ferruginous villous. 不育的子房球状，密被具铁锈色长柔毛。
- Mouse Chorionic Gonadotrophin，CG Elisa Kit；... 小鼠绒毛膜促性腺激素（CG）试剂盒；
- Herbs, glabrous or villous, rarely hispidulous. 草本，无毛的或具长柔毛，很少具短硬毛。
- Stem glabrous basally. Rachis sparsely villous. 无毛的茎基部。轴疏生长柔毛。
- Style ca. 1 cm, densely villous. 花柱长约1厘米，密被长柔毛。
- Treatment Some forms of CAH can be detected in prenatal tests like amniocentesis or chorionic villus sampling. 治 疗 一些类型的先天性肾上腺增生性肥大能够运用诸如羊水诊断或绒毛膜取样的产前检查被发现。
- Pedicel 1-5 cm, sparsely aculeate and villous. 花梗1-5厘米，稀少尖锐和具长柔毛。
- Stem 7.5-30 cm tall, crisped glandular villous. 茎7.;5-30厘米高，皱波状的具腺的具长柔毛。
- It involves a subject known as isokinetic sampling. 这涉及所谓等速取样的问题。
- Petals to 1.2 cm, involute, margin densely villous. 花瓣达1.;2厘米，内卷，边缘密具长柔毛的。
- Objective To evaluate the feasibility,accuracy and safety of chorionic villus sampling(CVS). 目的探讨用绒毛进行早期产前诊断的可行性、准确性及安全性。
- The concept of sampling will be presented below. 关于采样的概念，后面将要说明。
- There are many applications for random sampling. 随机抽样有许多应用场合。
