层片间距调整
adjustment of lamellar spacing
鳃片间距
the spacing of the gill-piece
珠光体片间距
Pearlite interlammer spacing
束间间距
distance of adjacent scanning lines
右心室收缩时间间距
systolic time interval of the right ventricle
Al-Mn-Fe-Si翅片铝箔
Al-Mn-Fe-Si wing-aluminum foil
GC型高效翅片塔盘
GC type of high efficient finned trays