查询词典 cement

Requests on resistance of corrosion destructibility of sealing interfaces that related to sealing up and cementing exercises in petroleum engineering are more and more of rigidity. It is urgently needs to resolve all sorts of problems that affect interface bonding quality. Conventional cement slurry design resist the destructive function worse, and can't like to satisfy the request to carry on latter production such as perforation, acidify, fracture etc.

常规油井水泥抵抗破坏的性能较差，不能很好满足水泥环抗冲击振动以及射孔、压裂等各种变形破坏的要求，这在一定程度上限制了小间隙、大位移、定向与水平井等特殊钻井工艺技术的发展，也制约了后期压裂、酸化等诸多开发工艺措施的实施。

Mixing a little additive into the process of beton can modify capability of beton, save cement and enhance benefit of techno- economy. So it gets more and more regarding all over of world.

在配制混凝土时掺入少量的外加剂，能明显改善混凝土的性能并节约水泥，提高技术经济效益，因而受到国内外的普遍重视。

Hit double lever ball to need to have two him ball or one ball (2, 3) close suitably, build ace ball to need one party ball to be short of date and the around that lack number group of cement of safety of ball of two adjacent date, and hit edge ball to need his ball supply only however.

打双杆球需有两个他球或一球一门相配合，造王牌球需一方球缺号和缺号前后两个邻号球平安结组，而打擦边球却只需要一个他球接应。

In this paper, low-clinker cement is mainly developed from fly ash and coal gangue, in order to build tow new gel system, and admix concrete with various good performances.

本文分别以粉煤灰、煤矸石为主要原料研制少熟料水泥，从而提出两种新的胶凝体系，以此配制出了性能优良的少熱料水泥混凝土。

First of all, through the admixture of cement mortar of the trial, summed up the impact of.

首先，通过外加剂对水泥砂浆性能的试验，总结了其影响规律。

The paper introduces working principle and design idea of production line of cement admixture ,the characteristics of system as well.

文章详实阐述了水泥掺和料生产线的设计思想及工作原理，指出了系统的特点。

S.P.C. company is specializes in research, development, production and sales of cement admixture .

公司专门从事各种水泥外加剂的研究开发、生产与销售。

Fresh concrete is a mixture of water,cement,aggregate and admixture.

新浇混凝土是由水，水泥，骨料和外加剂混合而成的。

Therefore, limestone had good future as mineral admixture in cement and concrete.

因此认为，石灰石作为一种新型改性材料在水泥混凝土中具有良好的应用前景。

Since then, in order to "curb excessive investment phenomenon" as the main objectives of macro-control Afterburning sharp, steel, cement, electrolytic aluminum, real estate and other industries to become the focus of regulation.

自那时以来，以"遏制过度投资现象"为主要目标的宏观调控加力夏普，钢铁，水泥，电解铝，房地产等行业成为调控的重点。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。