单词	Gas drainage radius
释义	Gas drainage radius 泄气半径
随便看	optical profile type optical profilometer optical profilometry optical projected display optical projectio optical projection optical, projection apparatus optical projection comparator optical projection exposure method optical projection grinder optical projection instrument optical projection lithography optical projection magnification optical projection master optical projection pantograph optical projection printing optical projection profile grinding machine optical projection reading device optical projection system optical projection tomography optical projector optical projector,optical projection system optical projectors optical project perimete optical project perimeter