The vibration action, cavitation effect and heat effect of the acoustic field can flake off the grains tcplug up the pore space hnd slit. and then remove the plugging and imaty the microfractures.

 
  • 聲場(chǎng)的振動(dòng)作用、空化作用和熱作用,可使堵塞巖孔和縫隙的顆粒剝落,從而達到清堵并產(chǎn)生微裂縫的效果。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan