单词	基质颗粒
释义	基质颗粒matrix grain
随便看	passive restraint passive return passive return loss passive return--loss passive ribbon splicing alignment passives passive safety passive safety system passive satellite passive search list passive seismic method passive semiconductor waveguide passive sensor passive sensors passive sensor (sensor) passive side passive simulation passive singing point passive sleep passive-slip folding passive smoke control system passive smoker passive smoking passive solar system passive sonar