1. Roughness of the skin can be caused by bad diet.
   饮食不好可能引起皮肤粗糙。
2. Mares are surprisingly tolerant of the roughness and rudeness of their own offspring.
   母马容忍后代粗暴和野蛮的程度教人意外。
3. A simplified model based on drag concepts is developed to evaluate the roughness coefficient for unsubmerged vegetation.
   并基于阻力的概念，建立了一个简化的模型来估计菖蒲的曼宁糙率系数。
4. By way of improving the superfinishing process,the appearance quality and surface roughness of steel balls,together with the productivity,were increased.
   通过改进超精研加工工艺及加工过程,提高了钢球的外观质量和表面粗糙度及生产效率,使该类轴承的性能和寿命有了进一步的提高。
5. (2) all of biological characters, such as cormel's fresh weight, size, height, root length, roughness and root quantities, presented 1% significant difference.
   (2)不同生长发育期无性繁殖的子球鲜质量、最大直径、子球高度、根系长度、根基粗度及根系数量等生物学性状均呈现1%水平极显著差异。
6. Some common troubles such as poor throwing power,burnt deposit on rim,dull gray coating,piebaldism,blue film,hazy deposit,spongy surface and roughness in decorative chromium plating were summarized.
   介绍了装饰性镀铬最常见的质量故障:均镀能力差、边角易烧焦、铬层暗灰色、花斑、蓝膜、雾状、麻面和粗糙等。
7. The coatings composed by the chosen refractory is crackfree in high temperature.The castings using the coatings is free of surface defect and the surface roughness can reach 18 - S.
   根据此法选出的耐火材料所组成的涂料在高温急热时不开裂，浇注出的铸件表面无缺陷，表面粗糙度达18-S。

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