查询词典 double angle formulas

Double time：跑步

double taxation 双重课税 | double time 跑步 | double underline 双下划线

Double time：快步行走

double-talk 含糊言谈 | double-time 快步行走 | double-tongued 欺骗的

double up：弯曲(手脚等)

double back 把...对折;往回跑 | double up 弯曲(手脚等) | double up 弯着身子;把...对折

Double up and secure：加双缆挽紧

double universal coupling 双万向联轴器 | Double up and secure! 加双缆挽紧 | double up 加双绑

Double up and secure：各缆打双

double sight 隔时测天 | double up and secure 各缆打双 | double-hose rigs 双管设备

double valued function：双值函数

double tangent 二重切线 | double valued function 双值函数 | double vector product 二重向量积

double-acting cylinder：双酌汽缸

double acting compressor 双动压缩机 | double acting cylinder 双酌汽缸 | double acting engine 双酌发动机

double-acting cylinder：双作用汽缸

double-acting compressor 双作用式压缩机 | double-acting cylinder 双作用汽缸 | double-acting duplex slush pump 双动双工泥浆泵

double-acting hinge：双面铰链

double-acting hand force pump 双作用手摇泵 | double-acting hinge 双面铰链 | double-acting jack 双作用千斤顶

double-acting hinge：双动铰链

"double-acting hammer","双动鎚" | "double-acting hinge","双动铰链" | "double-acting pawl","双动爪"

dioptric：折射光学的

dioptre 屈光度 | dioptric 折射光学的 | dioptrics 折射光学

Saturdays are fun：星期六很有趣

6. Saturdays are fun.星期六很有趣. | fun 为不可数名词,"快乐,有趣",在此做表语. | That must be fun. 那一定很有趣.