弧

radius of concave curve

凹弧半径

length of concave curved section 凹弧段长度 | radius of concave curve 凹弧半径 | length of convex curved section 凸弧段长度

differential of arc

微弧, 弧元素

union wages 工会规定的工资率 | differential of arc 微弧, 弧元素 | malmsey 白葡萄酒的一种

arc extinguisher

灭弧器

arc extinguish chamber 灭弧室 | arc extinguisher 灭弧器 | arc extinguishing 消弧

sagittal focal line

弧矢焦线

sagittal field curvature 弧矢场曲率 | sagittal focal line 弧矢焦线 | sagittal focus 弧矢焦点

arc hissing

弧嘶声,弧嘶

"arc generator","电弧产生器,电弧振荡器" | "arc hissing","弧嘶声,弧嘶" | "arc lamp","弧光灯"

sagittal image point

弧矢像点

sagittal focus 弧矢焦点 | sagittal image point 弧矢像点 | sagittal image surface 弧矢像面

interneural arch

髓间弧

颌间腺 internasal gland; intermaxillary gland | 髓间弧 interneural arch | 髓弧间关节;椎弧间关节 interneural articulation

low-current plasma arc welding

小电流等离子弧焊

中电流等离子弧焊 intermediate-current plasma arc welding | 小电流等离子弧焊 low-current plasma arc welding | 微束等离子弧焊 micro-plasma arc welding

mercury arc

水银弧,汞弧

水银真空泵 mercury air pump | 水银弧,汞弧 mercury arc | 水银避雷器 mercury arrester

minor arc

主弧;小弧;劣弧

子式;较小的 minor | 主弧;小弧;劣弧 minor arc | 小辅助圆 minor auxiliary circle

NHL：abbr. non-hodgkin lymphoma; 淋巴瘤

complete ordered field：完备有序体

完全的空间n点形 complete n-point in space | 完备有序体 complete ordered field | 完全正(直)交系 complete orthogonal system