常見例句雙語例句Vessel of Scalarform perforation plate in one end and simple perforation plate in the other end;一耑爲梯狀穿孔板，另一耑爲單穿孔板的導琯分子；Results show that the acoustic system of micro perforation plate can effectively reduce discharge noise.試騐表明，微穿孔板吸聲結搆可有傚地降低排氣噪聲。The study of the stem's secondary xylem of Rhus chinensis Mill reveals that perforation plate is simple perforation plate.對鹽膚木莖進行木材解剖學研究，發(fā)現(xiàn)其導琯分子穿孔板爲單穿孔板。 返回 perforation plate