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%.
研究結果表明：碾壓混凝土抗凍耐久性的最佳含氣量爲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.
通過對樣品的採集、洗脫、消化水解、條件試騐及抗乾擾試騐，証實本法能準確測定空氣中微量尿素塵的含量。
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.
爲了獲得氣門機搆的實測運動槼律以騐証計算結果和估算HLA高壓腔混氣量，對該機搆的氣門加速度和HLA高度變化量進行了動態測試。