laboratory vacuum pump 中文意思是什麼
laboratory vacuum pump
解釋
實驗室用真空泵- laboratory : n. 1. 實驗室，化驗室，研究室。2. 爐房。3. 化學工廠；藥廠。4. 實驗課。
- vacuum : n （pl vacuums vac ua ）1 真空；空處，空虛，空白。2 〈美口〉吸塵器（＝ vacuum cleaner）。vi vt 〈...
- pump : PUMP ＝politically upwardly mobile personality 政治新星，政治上有望晉升人士。n （淺口無帶的）輕舞...
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Changes of the longitudinal and transversal wave velocities in different directions and the rock velocity anisotropy as a function of confining pressure have been studied under laboratory ultrasonic frequency for shale and sandstone with marked foliation, which had been saturated by the fluids with different viscosity kerosene and vacuum pump oil and salinity distilled water, 50000
利用不同黏度煤油和真空泵油不同礦化度蒸餾水50mg l和150mg l的nacl溶液的流體對頁巖和具有明顯層理的砂巖進行飽和，在實驗室超聲頻率下研究樣品不同方向縱橫波速度以及各向異性參數
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