Optional gear ratio
[化] 可变齿轮速比
🧩 词语组成解析
gear
[ɡɪr]
n. 齿轮;排挡;传动装置;衣服 ;
vi. 接上;调和;
vt. 使适应;装上齿轮;用齿轮连接;
ratio
['reiʃiəu]
n. 比，比率;比例;系数;
vt. 求出比值，除，使…成比例;将（相片）按比例放大[缩小];
🗣️ 情景例句
Ask me another question.
别问我这个。
No. I was planning to stay home.
不，我打算呆在家里。
The fish, which has since been sent to a museum where it is being examined by a scientist, is called an oarfish.
此鱼叫桨鱼，被送进了博物馆，现正接受一位科学家的检查。