23. Randomised controlled trials comparing screening with flexible sigmoidoscopy or faecal occult blood testing to each other or to no screening.
比较以软式乙状结肠镜与粪便潜血检查进行筛检或不筛检的随机对照试验。
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24. They could train farmers to allow the sediment to settle out of the wastewater before using it-thereby avoiding the worst of the faecal matter.
还可以培训农民,让他们在使用废水之前就通过沉淀来净化它,从而避免出现最坏的残渣问题。
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25. The experiment was conducted to investigate the effect of supplementation with BIO-MOS on the faecal bacterium populations and health of calves.
观测甘露寡糖不同添加水平对犊牛粪便菌群变化和健康状况的影响。
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26. The improved lysozyme method can effectively extract faecal bacteria total DNA and ensure the downstream analysis technology to carry out smoothly;
改进的溶菌酶法可有效对粪便细菌总DNA进行提取并保证下游分析顺利开展;
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27. Preferably, horses with a low faecal egg count should not be treated at all to ascertain a reduction of the selection pressure for anthelmintic resistance.
最好,马低粪蛋伯爵不应该在所有以确定减少了选择压力,驱虫阻力。
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28. Scientists are also working to determine the amount of time the virus can survive in the environment on both dry surfaces and in suspension, including in faecal matter.
科学家也正在研究病毒在干燥表面或悬服液中可以生存多久,包括在粪便中的存活时间。
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29. We monitored some background DNA in faecal DNA, and discussed potential risks from background DNA contamination, such as genomes of bacteria, virus, parasites and prey.
文中还对粪便DNA内细菌基因组等背景DNA可能对分子粪便学试验结果的影响进行了探讨。
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30. The eggs of intestinal schistosomiasis can be detected in faecal specimens through a technique using methylene blue-stained cellophane soaked in glycerine or glass slides.