防止

In comparison with bugle shaped nozzle, bifurcated nozzle downward jet angle 45°, cow-nose nozzle and three-hole nozzle, in all, the last two are better than the former and bifurcated nozzle downward jet angle 45 is better than bugle shaped nozzle; Cow-nose nozzle is helpful for guaranteeing the product's quality, in order to protect jet flow from eroding the strand at narrow face, gain uniform temperature distribution at cross section and decrease heat flux, adding the block's width to 100 mm. Three-hole nozzle is advantageous to increase flux and casting speed, but should avoid weak shell thickness in the center broad. In the real production, setting the SEN's immersed depth or plugging the hole at the bottom can adjust the flow and temperature distribution in the mold.

对比喇叭形水口，双侧孔水口(45°)，牛鼻子水口和三孔水口，总的说来后两者优于前两者；而双侧孔水口(45°)又优于喇叭形水口；牛鼻子水口和三孔水口比较各有特点，前者对保证铸坯质量有利，为防止流股对窄面的冲击，增加挡块宽度到100 mm，可使结晶器横截面上温度分布更加均匀，降低窄面热负荷；后者对增加流量，提高拉速非常有利，但要防止中孔射流过强导致铸坯中心坯壳变薄，在实际生产中可通过控制水口浸入深度或塞住浸入式水口的底孔来调节结晶器中的流动与温度分布状态。

In comparison with bugle shaped nozzle, bifurcated nozzle downward jet angle 45°, cow-nose nozzle and three-hole nozzle, in all, the last two are better than the former and bifurcated nozzle downward jet angle 45 is better than bugle shaped nozzle; Cow-nose nozzle is helpful for guaranteeing the product"s quality, in order to protect jet flow from eroding the strand at narrow face, gain uniform temperature distribution at cross section and decrease heat flux, adding the block"s width to 100 mm. Three-hole nozzle is advantageous to increase flux and casting speed, but should avoid weak shell thickness in the center broad. In the real production, setting the SENs immersed depth or plugging the hole at the bottom can adjust the flow and temperature distribution in the mold.

对比喇叭形水口，双侧孔水口(45°)，牛鼻子水口和三孔水口，总的说来后两者优于前两者；而双侧孔水口(45°)又优于喇叭形水口；牛鼻子水口和三孔水口比较各有特点，前者对保证铸坯质量有利，为防止流股对窄面的冲击，增加挡块宽度到100 mm，可使结晶器横截面上温度分布更加均匀，降低窄面热负荷；后者对增加流量，提高拉速非常有利，但要防止中孔射流过强导致铸坯中心坯壳变薄，在实际生产中可通过控制水口浸入深度或塞住浸入式水口的底孔来调节结晶器中的流动与温度分布状态。

If you keep your lacertas outdoors, make sure to put an underground wall around their enclosure both to prevent the lacertas from digging their way out and to prevent moles from digging their way in.

如果你在户外饲养捷蜥，那么你必须在饲养区域的周围设置一圈地底的围墙，防止捷蜥挖洞逃走，并防止鼹鼠挖洞进去。

This is to improve human life, production environment and reduce heat energy consumption, reduce the light liquid products of evaporation losses, compressed gas tank to prevent overheating boost, reduce fire and explosion accident hidden dangers and prevent related articles excessive spoilage, etc.

这对改善人类生活、生产的酷热环境和减少能耗、减少轻质液态产品的蒸发损失、防止压缩气体贮罐过热升压、减少火灾和爆炸事故隐患、防止有关物品过快的腐败变质等作出了巨大贡献。

Although both used to express the methods to prevent the biohazards in biotechnology and microbiology area, there are still differences between preventing an unintended release into the environment (referred to as "biosafety") and preventing abuse or theft (referred to as "biosecurity") of the biotechnological or microbial hazards.

虽然biosafety与biosecurity都被称作生物安全，但biosafety强调的是防止非故意引起的生物技术及微生物生物危害，biosafety则是指主动地采取措施防止故意的，如窃取及滥用生物技术及微生物危险物质引起的生物危害。

Emollients help to prevent the skin from losing too much water which in turn prevents dry, itchy skin.

emollients有助于防止皮肤失去太多的水这反过来又可防止干燥，皮肤发痒。

The other issues include the doctrine of estoppels and the "contribution infringement".

商标保护制度的基本出发点是防止和制止混淆，因此防止和制止混淆也就是商标侵权判断的基本出发点。

The extracts from gingko leaves possess lots of functions:to improve cerebrovascular circulation and protect the brain cells against lack-blood;to expand coronary artery and prevent angina myocardial infarction;to restrain blood platelet gatherings and thrombus formings ;to eliminate harmful oxidized free radicals and enhance immunity;to guard against cancer and senile etc.

银杏叶提取物具有改善脑血管循环，保护脑细胞免受缺血损害；扩张冠状动脉，防止心绞痛及心肌梗塞；抑制血小板聚集，防止血栓形成；消除有害的氧化自由基，提高免疫力；防癌抗衰老等功能，对防治冠心病、心绞痛、脑动脉硬化、老年性痴呆症、高血压等都有较好效果。

The effect of the friction between rolls and ring can be ignored and the effect of the spread velocity of rolling on the deformation of ring is illustrated.

通过模拟分析比较，揭示出了环件轧制过程中的金属流动规律：轧制时，环件外侧的变形最大，厚向中心部位变形最小，内侧的变形程度介于中间；环件内外环面的压应力分布和变化规律：在垂直于环件轴线的对称面上，压应力分布近似对称状态，而且在对称面上的应力最大，往端面方向开始减小；指出了环件轧制中轧辊与环件摩擦对环件成形的影响：对于环件的宽展变形，摩擦的影响很小，可以忽略；分析了环件进给速度对环件成形的影响并阐述了环件厚向中心部位凹陷产生的原因，提出防止凹陷的措施：在轧制时，尽量使用快的进给速度有利于防止端面凹陷的产生；研究了导向辊位置对环件成形以及轧辊受力的影响：导向辊的位置对环件的宽展变形影响很小，但对轧辊的受力影响较大，当导向辊的中心位置位于毛坯初始中心位置之上时，驱动辊和芯辊的受力相对较小，这是导向辊导向时优先考虑的位置。

Guard thy hand from misdeed as thou guardest thy house from firelighters.

守住你的手防止行恶，就像守住你的屋子防止起火。

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。