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It is proved by practice that the pipeline lined with the rolling insertion method not only seldom leaks, but also suits to the slushy fluid because the PE linef has high roundness,low frictional drag factor and high resistance to chemical corrosion.
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由于这种衬里管成圆度高、摩阻系数低,并具有抗化学物质侵蚀等特点,所以经实践证明,采用聚乙烯管转动成衬的管道不但流体损失少,而且对输送颗粒物质的抗蚀性较高。 |
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It is proved that (n-n+)/<D(REn)< (n+ n-)/, where D(REn) denote the diameter of REn.
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并且证明了(n-n+)/<D(REn)<(n+ n-)/, 这里 D(REn) 表示 REn 的直径. |
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It is proved that Heawood's counterexample is color.
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应用证明五色定理的方法 (肯普链 ) ,证明了希伍德的反例是 -色的 . |
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It is proved that the one-stage operation not only improves the rate of spinal fusion but also facilitates the spinal correction and cosmetic costoplasty of the rib cage.
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实践证明本手术既可增加脊柱融合率,又便于脊柱矫形,同时还可改善美观,减少手术次数,减轻病人痛苦。 |
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It is quite necessary to open the courser of garden model design and manufacture which is a good supplementary for the major course garden planning design.
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开设园林模型设计制作课程是园林规划设计主干专业课的必要补充。 |
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It is rather interesting to note that the ~ C-His incorporation is enhanced by TMV-RNA. This stimulation presumably is directed by the noncoat protein cistron of TMV-RNA.
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TMV-RNA在该体系中能指导~ C-His的参入值得注意,这可能是由TMVRNA的非外壳蛋白顺反子决定的。 |
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It is reported in this paper prevention result to cucumber grizzle mildew of new bactericide——啶菌恶唑.
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目前灰霉病菌对苯并咪唑类、二甲酰亚胺类、N-苯氨基甲酸酯类、苯胺基嘧啶类杀菌剂均有抗性报道。 |
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It is reported that retarded children were treated with transplantation of fetalbrain tissue between 99 and 99 They were 7 males and females, aged . ~ (inean9. ) years and suffered from idiocy ( cases), stupid ( cases) and dull-willed ( cases).
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99年至99年期间，采用胎脑组织脑内移植治疗低能儿00例，其中男性7例，女性 例，年龄．岁至 岁（平均9． 岁）。 分类为：白痴例，痴愚 例和鲁钝例。 |
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It is reproved that minimum shared information between the rhetor and the audience is a prerequisite for intention inference and that both context and relevance can be given or chosen in the process of communication.
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接受者推断表达者的语用意图离不开交际双方最起码的共享信息。 |
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It is rooted in language, thought, and culture.
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隐喻概念体系,根植于语言、思维和文化之中。 |
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It is show that the suitable conditions are as following:the reaction temperature is 80～8 ℃; the heating time is ～0 min; the mass fraction of the abluent is 7%～0%;
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果表明,在适宜的温度(80~8℃)、适当的加热时间(~0 min)、清洗剂质量分数为7%~0%和剂砂体积比为∶的条件下,YSFL-油砂清洗剂可以将油砂矿中油与砂较好的分离。 |
