- approximate test
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近似测定的英文
例句与用法
- Standard practice for approximate determination of current density of large - diameter ion beams for sputter depth profiling of solid surfaces
固体表面溅射深度仿形加工用大直径离子束的电流密度近似测定的标准规程 - Suggest the method of division to measure the largest compacted dry density of dam ' s material with super large diameter approximately . according to the research of predecessor , suggest applying the effective void ratio or the effective void rate to compute the coefficient of permeability approximately
采用了表面振动法进行室内最大干密度的研究，提出了比例法近似测定超径粗粒土最大干密度；在前人研究的基础上，提出采用有效孔隙率或有效孔隙比的渗透系数近似估算。