查询词典 water main

The results indicated that there existed significant differences in growth rate and wood quality among the provenances. A classical clinal variation pattern responding to the latitude of seed sources was found for DBH, height, individual volume and stem straightness, and water and heat resources of seed sources were the main climatic factors which caused the variation.

结果表明：马尾松生长、形质和木材基本密度皆存在显著的种源差异，种源胸径、树高和材积生长及树干通直度呈典型的纬向倾群变异模式，这种变异主要是由其产地水热资源条件差异引起的。

The deformation of the main paper, water absorption by the paper and paper subject to tensile deformation compressionr coaction deformation.

不主给是纸张的变形，由纸张的吸火变形和纸张施拉伸压缩的变形不败群功用。

Wangzhuang oil field is located at the west section of the northern steep slope in Dongying sag. Upper S3 submember in this oil field is a stratigraphic-lithological oil reservoir affected by edge-bottom water and its main part is conglomeratic Zheng-408 sand body.

王庄油田位于东营凹陷北部陡坡带西段，沙三上亚段油藏为受边、底水影响的地层-岩性油藏，主体部分是郑408砂砾岩体。

The water environment problem has become one of the main bottlenecks constraining the national economic and social development in our country.

内容提要水环境问题已成为制约我国国民经济和社会发展的主要瓶颈之一。

Based on hydrogen peroxide and ammonium persulfate as compounded initiating system,unsaturated vinyl monomers were used to directly copolymerize a new high range polycarboxylate water reducer structurized in carboxyl,esterquat and amido as main chain and in polyethylene glycol ether as side chain.

以过硫酸铵和双氧水为复合引发体系，采用不饱和单体直接共聚，得到一类主链为羧基、酯基、酰胺基，侧链为聚乙二醇醚基的新型聚羧酸高效减水剂，研究了共聚物的结构对分散性能的影响。

The results from Main compounds of analysis showed that there were no significant difference on water, crude ash for those sebastan plum cordia in the level of 6 to 7 and 8 to 9 of maturity. If not of maturity, sebastan plum cordia couldn't be processed.

由主要成分分析结果显示，成熟度6~7分与8~9分之破布子，其水分、粗蛋白质、粗灰分含量虽无显著差异，但若破布子成熟度不够，则无法加工制作成破布子丸，且选择成熟度8~9分的破布子制成破布子丸才不会有涩味。

Under the optimum conditions of a cyclopentene amount of 1.0 mol, a molar ratio of cyclopentene to water of 0.25, a reaction temperature of 120 ℃, a reaction time of 4.0 h, a main catalyst dosage of 4.0 g and a cocatalyst dosage of 0.8 g, the yield of cyclopentanol reached 68.6%.

确定适宜的反应条件为：环戊烯1.0 mol，n﹕n=1﹕4，反应温度120 ℃，反应时间4.0 h，硅胶负载铌酸主催化剂用量4.0 g，三（3，6-二氧杂庚基）胺助催化剂0.8 g。在此反应条件下，环戊醇收率68.6%。

Cyclopentanol was synthesized from cyclopentene and water through hydration reaction using HNb3O8·H2O/SiO2 as main catalyst and tris(dioxa-3,6-heptyl)amine (TDA-1) as cocatalyst.

在以硅胶负载铌酸为主催化剂、三（3，6-二氧杂庚基）胺为助催化剂的作用下，以环戊烯和水为原料，通过水合加成反应合成了环戊醇。

Based on the actual project, the author of this paper studies the influence of different admixture on the grouting material, the admixture is made up of water-reducing agent ZQG 、grouting mixture SM-1、SM-2、modifier MMA or AR,and determines the basic mix proportion through experiments; Discusses the construction technology of the grouting materials and examines the quality of grouting material through drop-weight deflectometer;The main results are as follow

本文来源：发表网专业发表文章，论文检测等综合性服务，发表文章请到发表网！发表QQ： 185230016本文以工程应用为目标，研究了减水剂ZQG、压浆掺合料SM-1、SM-2、改性剂甲基丙烯酸甲酯共聚物乳液和丙烯酸树脂等不同外加剂对压浆材料性能的影响，并研究确定了压浆料的配合比；对压浆施工技术进行了讨论，并通过落锤式弯沉仪对压浆质量进行检测。主要研究结果如下

Nitrite nitrogen and ammonia nitrogen were the main components in the deteriorative aquaculture water.

亚硝酸盐氮和氨氮是养殖水体恶化的主要成分。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。