词组、短语、俚语及习惯用语• Symmetrical multivibrator
对称多谐振荡器。• radially adjustable electrolytic honing tool
径向可调电解珩磨工具。• radially continuous mapping
径向连续映射。• radially open set
径向开集。• radially uniform circular springs
径向匀圆弹簧。• symmetrical aerial input
天线平衡输入。• symmetrical alternating current
对称交流,平衡电流。• symmetrical alternating function
对称交变函数,简谐函数。• symmetrical arcs of pattern
(衍射)花样对称衍射线。• symmetrical astigmatism
对称象散。