1·Rabbit villus density, high yield, good sales, price stability, rabbit resistance and strong, easy keepers.
兔绒毛密度大、产量高、销路好、价格稳、兔的抗病能力强，易饲养。
2·Results : ( 1 ) The positive expression of MMP - 2 reinforces gradually from normal villus, benign mole to malignant mole which has statistically significance ( P < 0. 05 ).
结果（1）从正常绒毛→良性葡萄胎→恶性葡萄胎，MMP-2的阳性率有升高趋势，差异有统计学意义（P〈0.05）。
3·At the tip of the villus, arterioles send out one branch to form an arteriovenous anastomosis with the vein.
微动脉在绒毛顶部与微静脉有交通支，构成动静脉吻合。
4·To study the cause and precaution of villus cultivating in celiac after laparoscopy of fallopian pregnancy.
目的探讨输卵管妊娠腹腔镜术后绒毛腹腔种植的原因和预防。
5·The improvement of the main problems arising in the course of direct preparation of villus cell chromosomes has been illustrated, and the relative problems have been discussed.
对绒毛细胞直接制备染色体过程中存在的一些主要问题，在技术上进行了改进，并就有关问题加以讨论。