查询词典 planetary electron

Three-ring gear drive：三环传动

谐波齿轮传动:harmonic gear drive | 三环传动:Three-ring gear drive | 行星齿轮传动:planetary gear drive

three-hour range index：三小时段指数

three-hour geomagnetic planetary index ==> 三小时全体地磁指数 | three-hour range index ==> 三小时段指数 | three-in-hand ==> 三驾马车

three-hour geomagnetic planetary index：三小时全体地磁指数

three-hole aperture ==> 三孔光栏 | three-hour geomagnetic planetary index ==> 三小时全体地磁指数 | three-hour range index ==> 三小时段指数

spur gearing：正齿轮传动装置,正齿轮对

spur-gear wheel ==> 正齿齿轮 | spur-gearing ==> 正齿轮传动装置,正齿轮对 | spur-type planetary gear ==> 正齿式行星齿轮

cutter setting gauge：切割机调定量规

cutter planetary gear reducer;切割机行星齿轮减速器 | cutter setting gauge;切割机调定量规 | cutter shaft;切割机轴

synoptic-scale weather system：天气尺度天气系统

行星尺度天气系统 planetary scale weather system | 天气尺度天气系统 synoptic scale weather system | 中小尺度天气系统 meso and micro-scale weather

hour glass：砂漏

砂轮越程槽 grinding wheel groove | 砂漏 hour-glass | 少齿差行星传动 planetary drive with small teeth difference

planetary nebula：行星状星云

星云的形状不一,明亮程度亦不同,就形态上可分弥漫星云(diffuse nebula)行星状星云(planetary nebula)及超新星残骸(Supernova remnants)等3种,弥漫星云广阔稀薄且不规则无定形,后2者为恒星演化末期所造成的.

bipolar planetary nebula：双极行星状星云

bipolar outflow 偶极外向流 | bipolar planetary nebula 双极行星状星云 | blazar 耀变体

plan position indicator (P.P.I：平面(位置)指示器

"平面模","planetary model" | "平面(位置)指示器","plan-position indicator; p.p.i" | "厂;设备","plant"

binocular diplopia：双目双像

binocular colour mixing 双目混色 | binocular diplopia 双目双像 | binocular dixation 双眼注视,双眼视轴交会

sceptically：怀疑地 (副)

sceptical 习惯怀疑的 (形) | sceptically 怀疑地 (副) | scepticism 怀疑论, 怀疑主义 (名)