水泥的

The basic parameters of cement are elastic modulus, poisson's ratio and the thickness of cement;they do have impact on the coefficient of pressure transmission of surrounding rock and the coefficient of inflation pressure transmission of casing

水泥环的基本参数弹性模量、泊松比和厚度对围压压力传递系数和套管压力传递系数都有影响

By the elastic mechanics mathematical method and finite element analysis, the effect of cement sheath elastic modulus on casing external collapse load was researched on the conditions of uniform and non-uniform in-situ stress.

利用弹性力学解析及有限元方法，分别研究了均匀地应力和非均匀地应力条件下水泥环弹性模量对套管外挤载荷的影响规律。

Our company is mainly the development, scientific research, production and services as one of the building materials enterprises, mainly engaged in concrete admixtures, cement-based composite waterproof material.

我公司主要是集开发、科研、生产及服务为一体的建材企业，主要经营混凝土外加剂、水泥基复合防水材料。

Heap is the United States specializing in cement and concrete admixtures research, production, sales and engineering consulting world-class company.

美国希普公司是专门从事水泥和混凝土外加剂研究、生产、销售和工程咨询的世界级公司。

We shall develop the technology for production and application of chemical construction materials, high-performance heat-preserving and heat-insulating materials, furnace energy-saving and afterheat utilization of the construction material industry, the technology for production and application of grass fiber and the reinforced products thereof, nano super-minute crushing and super-minute powder surface treatment, production of the construction material products such as ecological cement that disposes of the industrial waste and life garbage, high-performance building coating of interior and exterior wall and environment protecting decorating and building materials.

发展化学建材生产和应用技术，高性能保温隔热材料，建材工业窑炉节能与余热利用技术，玻璃纤维及其增强制品生产与应用技术，纳米级超细粉碎技术与超细粉表面处理技术，处理工业废弃物和生活垃圾的&生态水泥&等建材产品生产技术，高性能内外墙涂料和环保型装饰装修材料技术。

The unit densifies parts to heal casting defects and voids, to bond similar or dissimilar materials, and to form net or near-net shapes from metal, ceramic, cermet and other powders.

此设备可以密化部件以愈合浇铸缺陷和空洞、粘结相容类或不相容类材料以及增加由金属、陶瓷、水泥和其他粉末成型的精度。

Sheeting. Widely used in chemical products, mining, fertilizer, cement, fish meal, food, fodder, fruits, vegetables and other agricultural and sideline products packaging.

广泛应用于化工产品、工矿、化肥、水泥、鱼粉、粮食、饲料、水果，蔬菜以及其它农副产品的包装。

Fire clay and kaolin were the predominate clays used in firebrick and grogs; bentonite, in foundry sand; common clay, in refractory mortar and cement; and kaolin, in high aluminum brick.

用于耐火砖和熟料生产的主要粘土是耐火粘土和高岭土，膨润土用作铸造砂。普通粘土用于耐火砌砖浆和水泥，高岭土用于高铝砖。

We shall develop the technology and equipment for new-type dry cement production, high-quality floating grass production, high-grade sanitation pottery and porcelain production, production of new-generation wall materials by using coal refuses and powdered coal ash as the main raw materials.

发展新型干法水泥生产工艺技术与装备，优质浮法玻璃生产工艺技术与装备，高档卫生陶瓷生产技术，以煤矸石、粉煤灰为主要原料的新型墙体材料生产技术与装备

In cast-in-place concrete structure, high-strength cement concrete hollow tube technology is the common beam, floor slab of ribs, prestressed plate without bond after an in-situ development of the new structure of the new system.

在现浇砼结构中，高强水泥薄壁管空心砼技术是继普通梁板、密肋楼板，无粘结预应力平板后新开发的一种现浇新结构体系。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。