smallwaren.小商品smalladj.小的；年幼的；少的；不重要的；小气的adv.小地；小块地；小声地n.狭小部分；(pl.)零星物品；(pl.)小件衣服small-spacing tunnel小净距隧道small molecule solvent小分子溶剂small-diameter cable小直径光缆small tactical missile小型战术导弹small object detection小目标检测small signal parameter小信号参数Small dimension effect小尺寸效应small target detection小目标检测small catchment stream小面积河流small bridge-culvert小桥涵