查询词典 contraceptive device

In light of the actual conditions in rural areas, women of childbearing age there with one child are encouraged to use intrauterine device and either the wife or husband of a couple with two children is encouraged to undergo sterilization, which are safe and effective contraceptive measures favorable to the protection of women's health.

根据中国农村的实际情况，提倡生了一个孩子的育龄妇女采用宫内节育器，生了两个孩子的育龄夫妇一方做绝育手术，有利于保护妇女的身心健康，是安全、有效的避孕措施，因此，比较容易为农村育龄夫妇所接受。

Since the enhanced contraceptive action of copper-bearing intrauterine device is commonly attributed to copper ions released as a result of copper corrosion, this thesis focused on the investigation of various factors probably affecting the corrosion behavior of copper in the case by in vitro measurements.

为配合各种新型含铜宫内节育器[如含消炎痛VCu IUD、Tcu IUD、γ型IUD及含左旋18-甲基炔诺酮的Cu IUD]的研制与临床应用，探索对避孕起关键作用的铜在各种情况下的腐蚀行为及影响因素，本文对几种新型Cu IUD在宫腔内可能涉及的腐蚀类型及影响因素进行了研究。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。