air-content test

基本解释

The test results are shown:The optimum air content value for RCC resistance to frost-thaw durability is about 5%.
研究结果表明：碾压混凝土抗冻耐久性的最佳含气量为5％。
Through collecting, dehydration, conditioned test and anti-jamming test of the sample, the content of trace urea dust in the air can be exactly determined by way of such technique.
通过对样品的采集、洗脱、消化水解、条件试验及抗干扰试验，证实本法能准确测定空气中微量尿素尘的含量。
On a test rig, the valve accelerator and the shortening of HLA were measured to examine the two dynamic models of valve train and to estimate the air content in the HLA high-pressure chamber.
为了获得气门机构的实测运动规律以验证计算结果和估算HLA高压腔混气量，对该机构的气门加速度和HLA高度变化量进行了动态测试。