... annular electromagnet 环形电磁铁 annular gap 环形隙 annunciator 表号器 ...
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短语
环形间隙
[矿业]
annular space
;
region annular
;
annular clearance
环形线圈间隙
annular coil clearance
环形空隙
[矿业]
annular space
环形气隙
annular air gap
环形缝隙天线
[电讯]
annular slot antenna
环状圆柱形空隙
circular cylindrical void
尾管-筛管环形间隙
tailpipescreen annulus
环形空气隙
annular air gap
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