test duration是什么意思

用法例句

To create a unitized rapid method to measure the chloride penetration resistance of concrete, the influence of test duration and electrolyte solution on the charge passed and depth of chloride penetration of concrete were studied.

为了建立统一的混凝土抗氯离子侵入性快速试验方法,进行了通电时间和电解质溶液对混凝土电量值及氯离子渗透深度影响的研究。

The electroflotation equipmnts,the characteristics of the electro-bubbles,the electrochemicaltreatments of flotation reagents,pulps and waste water with the electrifying,and the applications of electroflotation in the separtions of the sulphide and oxide ores are reviewed in this paper.

综述了通电电化学浮选设备、电解气泡特征，通电电化学处理浮选药剂、矿浆、废水以及在硫化矿、氧化矿浮选分离中的应用研究现状。

The expand behavior of the corrosion product was studied in the paper by half dry electrifying accelerate method,and the real expand multiple was measured, which will help to the research on the rust reinforced con.

通过半干通电加速试验的方法来研究钢板锈蚀膨胀性能。

Temperature field study on continuous ohmic heating of liquid food;

液态食品连续通电加热的温度场研究

Study on ohmic heating characteristics of egg white and yolk solulion;

蛋清、蛋黄溶液的通电加热特性研究

Heating-up characteristics of continuous ohmic heating system with vertical compartments for liquor;

直立分室式流体连续通电加热系统的升温特性