The objective is to study the prevention effect of PCR on coccidiosis in chickens.
目的：观察白头翁水提液对鸡球虫病的预防作用，为临床用药提供理论依据。
Objective - To compare the caries prevention effect of resin and glass ionomer cement sealant.
比较树脂型和高粉液比玻璃离子封闭剂窝沟封闭对第一恒磨牙的防龋效果。
Objective To investigate the prevention effect of erythropoietin on chemotherapy-induced anemia.
目的探讨红细胞生成素对小鼠化疗所致贫血的预防作用。
OBJECTIVE To study the prevention effect of sodium hyaluronate(SH) powder on post-operative dura adhesion.
目的研究透明质酸钠（SH）粉雾剂对动物术后硬膜粘连的预防作用。
The utility model has the advantages of simple structure, convenient operation, good prevention effect, etc.
它具有结构简单、操作方便、防治效果好等优点。
The special sealing ring and the embedded compression method have good waterproof and dust prevention effect.
特制的密封圈及嵌压方式，有良好的防水防尘效果。
The dust-prevention device has the advantages of simple installation, convenient use and good dust prevention effect.
本实用新型的优点在于安装简单，使用方便，防积尘效果好。
The results show that the seepage prevention effect of some foundation curtains is not so good, and the foundation drain is not so effective.
分析成果表明，部分坝块坝基帷幕防渗效果不够理想，坝基排水不够通畅。
Objective: to observe the prevention effect to stress of gastric mucosa affection treated with Livzon Dele in patients with acute cerebral apoplexy.
目的：为了探讨丽珠得乐对急性脑卒中病人应激性胃粘膜病变的预防作用。
The prevention effect of fly nets above watermelon against yellow melon leaf beetles, cabbage caterpillars and aphids were 100%, 100% and 80% respectively.
防虫网对西瓜主要害虫黄守瓜、菜青虫的控制效果为100%，蚜虫的控制效果为80%。
To evaluate the radiation level and radiation prevention effect in the environment and products after the reconstruction of production crafts in a lanthanon factory.
目的评价某稀土厂生产工艺技术改造后环境、产品放射性水平及放射防护控制效果。
New imported food grade SUS304 stainless steel shell design, high strength, not burst, deformation, leakage prevention effect is good, environmental protection, safe and durable.
全新进口食品级SUS304不锈钢外壳设计，强度高、不爆裂、不变形、防漏效果好、环保、安全、经久耐用。
Cracks are easily caused by different dimension, reinforcing rate and environment conditions in the facing plates of rock-fill-dams and results in decrease of seepage prevention effect.
堆石坝砼面板极易受其几何尺寸、配筋率及外部环境的影响出现裂缝，从而影响到坝体防渗效果。
The test results showed that this method has clear outburst-prevention effect, is simple for operation, flexible, reliable, and easy to be accepted, and has better spread and applicati…
试验结果证明，该方法防突效果明显，操作简便，灵活可靠，易于被接受，具有较好的推广应用前景。
The findings show that:the forgery prevention paper had a good forgery prevention effect when the ratio of SBB to SB26 is 5:5 and the dosage of special dyestuff is 0.008%(to oven dry stock).
研究结果表明，在湿部添加试验的一系列的特种染料中，复配组合SBB和SB26在质量比例为5/5，总用量为0．008%（对绝干浆）时可达到较好的防伪效果。
In this experiment, 32 farrowing sows were selected and randomly divided into 4 groups in order to study the prevention effect and influence of some Chinese medicinal herbs on piglets' diarrhea.
本实验选取32头产仔母猪，随机分成4组，以研究几种中草药处方预防仔猪腹泻及对仔猪生长的影响。
In this experiment, 32 farrowing sows were selected and randomly divided into 4 groups in order to study the prevention effect and influence of some Chinese medicinal herbs on piglets' diarrhea.
本实验选取32头产仔母猪，随机分成4组，以研究几种中草药处方预防仔猪腹泻及对仔猪生长的影响。
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