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The dosages of two different polynaphthalene sulphonate superplasticizers were selected according to the adaptability index including fluidity of cement paste,water-reducing ratio,and slump and strength development of concrete.

采用水泥浆体流动度、混凝土减水率、坍落度及强度增长率等指标确定了2种萘系高效减水剂的掺量，研究了二者在此掺量下对相同配比砂浆的流动度及经时损失、开裂敏感性及干湿变形的影响。

This paper presents the influences of sulphonated naphthalene formaldehyde condensatesand sulphonated melamine formaldehyde condensatesused spearately,and compounded sperplassticiseron the slump flow loss for cement paste or mortar.and slump loss for high fluidity concrete.

本文详细研究了单独使用萘系高效减水剂FDN和三聚氰胺树脂系高效减水剂SM ，以及复合使用FDN +SM对水泥净浆和水泥胶砂扩展度，以及大流动性混凝土坍落度经时损失的影响。

By way of orthogonal testing analysis,study was carried out on effects of molar ratio of unsaturated monomers with carboxylic groups,sulphonic groups,polyoxyethylene side chain groups and mean degree of polymerization of polyoxyethylene side chain groups on performance of polycarboxylic series of water reducer.

采用正交试验分析法，研究了带活性基团羧基、磺酸基、聚氧化乙烯链基等不饱和单体的摩尔比及聚氧化乙烯链的聚合度等对聚羧酸系减水剂性能的影响，提出一种合成聚羧酸系高性能减水剂的最佳配方。

The main problem that superelastic SMA was used in random vibration control is its deficient damping capacity.

超弹性 SMA 作为减振材料具有承载能力高，可恢复变形大，环境适应能力强的优点，但对于随机载荷下的减振，阻尼性能欠佳。

Through the measures of increasing towboat thrust, improving manoeuvre performance of towboats and reducing barges and load of a fleet etc.

采用增加推轮推力，改善推轮操纵性能和减驳减载等改进措施，可将两坝间河段的通航流量级由上水的2万立方公尺/s提高到4.5万立方公尺/s。

According to the characteristics of multi-generator model and results of system digital simulation research, a new design and set scheme of underfrequency load shedding equipment on the basis of multi-generator system is developed in this paper.

同时根据多机模型特点及仿真结果提出了一种基于多机系统的低频减载设计和整定新方案，与传统方案相比，该方案提高了低频减载性能及系统运行方式的适应性。

Salary and remuneration refer to the income of unreduced expense (RMB1,600 per month) and additional reduced expense (RMB3,200 per month), i.e.

工资、薪金所得，是指未减除费用（每月1600元）及附加减除费用（每月3200元）的收入额。

The unsmoothed characteristics of some living beings in soil have wear reduction and wear resistance function . The research benefits the revelation that a tungsten carbide reinforced Cu-base alloy wear-resistant composite coating was produced on mild steel by spark plasma sintering.Under the condition of two bodies abrasive wear ,the coating with the structure that hight hardness and good wear resistance WC particles embedding in tough fine Cu-base alloy matrix resist the abrasion wear and manifest the good wear reduction and wear resistance properties that the unsmoothed bodysurface of some living beings in soil have.

本研究受到某些土壤动物体表非光滑几何特征具有减磨、耐磨特性的启示，应用放电等离子烧结工艺，选取具有优良塑性的Cu基合金作为复合层基体，硬质点WC颗粒作为增强相，在碳钢表面形成WC\ Cu基合金耐磨复合层，在两体静载荷磨粒磨损条件下，高硬度、耐磨WC颗粒镶嵌在高塑性的Cu基合金基体中，共同抵抗磨粒的磨削，表现出某些土壤动物体表非光滑几何特征所具备的优良减磨、耐磨特性。

It is a member unit of China General Machinery Industrial Association, reducer and speed variator branches and director unit of Foshan Machinery and Equipment Association.

佛山市迪星传动机械有限公司，减、变速机的专业制造厂商，中国通用机械工业协会减变速分会会员单位、佛山市机械装备行业协会理事单位。

And the polycarboxylate based superplasticizer prepared by the macromer under optimal condition has good plasticizing and fluidity-retaining ability, the initial fluidity of cement paste reaches 303 mm, and the fluidity after 1 h is 297 mm.

以最佳酯化工艺制得的大单体为原料制备的聚羧酸系减水剂，具有良好的分散性和保塑性，掺该减水剂0.15%的水泥净浆的初始流动度达303mm，1h后其流动度为297mm。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。