annular magnet 环形磁铁...annular float 蛇眼浮眼...annular micrometer 圆径分厘卡...annular fuel tank 环状油箱...alternate circular ports annular spaces 更迭圆形门环空间...annular ball bearing 环状滚珠轴...annular atoms 环原子...annular wheel 内齿轮...Gerlach's annular tendon 格拉赫氏环状腱,鼓膜纤维软骨环...annular space 环隙,蛇眼隙...annular rings 环状阴影,胸膜环(X线片所显环...annular bit 环孔锥...annular-type stripper 环型汽提器...annular transistor 环状晶体管...annular valve 环状阀,轮形阀...annular gear 内齿轮...annular producer 环形发生炉...annular tubes 套管...top annular plate 顶部环板...annular ulcer 环状溃疡...annular distance 环孔...
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