In order to solve this problem, different strength grades of concrete which are in common used in hydraulic engineering are prepared by use of local materials and air entraining admixture, and the cross experiment method is adopted.

The characteristics of air entraining cement bricks and the factors which affect the quality of the wall are described, and the methods and measures of quality control in the construction are also presented in the paper.

文章论述了加气混凝土砌块的特点以及对墙面质量的影响因素，介绍了在施工中做好质量控制的方法和措施。

In this paper, the performance and the construction technology of concentrated reinfored concrete beams and air entraining cement build compound floors are discussed in broad outline.

文章概述了钢筋砼密肋梁与加气砼砌体的复合楼板的性能及施工工艺。

Concentrated reinforced concrete beams and air entraining cement build compound floors

钢筋砼密肋梁与加气砼砌体复合楼板

The phenomenon and the mechanism of air entrainment were discussed.

对气泡产生的现象及原因进行了描述、分析。

Air Entrainment and Its Influence on Concrete Properties

引气作用及其对混凝土性能的影响

Effect of Permeability of Concrete and Air Entrainment on Durability of Concrete

混凝土渗透性及引气作用对耐久性的影响

Based on the diffusion theory of turbulence and similarity theory the similarity laws of air entrainment for model test of aerated flow are deduced.

根据紊动扩散理论和相似理论导出了掺气水流试验的9个模型相似律。

Estimation of scale effect of air entrainment in model test of aerated flow

掺气水流掺气浓度缩尺影响的估计

Discussing About Air Express and Logistics in China THE AIR MASSES OF CHINA

后WTO中国物流之路&浅谈新形势下的中国航空快递和物流业发展

Solution of Data Warehouse for China Air Express

民航快递数据仓库解决方案研究

Characteristic analysis of air express service and some suggestions for its further development in China

航空快递业特性分析及其在中国发展的设想

Analysis of the Market Range for the Domestic Air Express Service of China

中国航空快递产品市场面分析

Floating State Analysis of Air Float Structures

气浮结构的静浮态分析

Air Float of the Large Diameter Cylinder Shell Structure

大圆筒结构的充气浮运方法

Research on treating detergent in bath sewage in mining areas by air float process and reuse of sewage

气浮法对矿区洗浴污水中洗涤剂处理及回用研究

Study on Kinetic Properties of Air Float Structures

气浮结构的运动特性研究

In this paper, the design features of the circuit and the soft ware of model ZFC-2 air flow meter have been introduced.

本文介绍了用于气体流速动态测试的ZFC-2流速仪的硬件和软件设计特点。

Unclip the cable from the mass air flow meter on the reservoir of the hydraulic pump and lay it aside.

松开液压泵储液罐上的空气质量流量计的电缆，放在一旁。

Engine mass air flow meter

发动机进气质量流量计

Development of Portable Air Flow Meter

便携式气体流速测定仪的研制