Differential piston
[机] 异径活塞
🧩 词语组成解析
differential
['dɪfə'rɛnʃəl]
adj. 差别的;特意的;[数]微分的;[机，物]差动的;
n. [数]微分;差别;工资级差;[机]差动器;
di, dif, divid 表示”分开”;”取消”,”否定”;”不同”
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
Financial security, that's what it's all about.
家庭财政状况无忧，这就够了。
What's the date today?
今天是几号？
Oh, it's a short ruler. Who has a long one?
噢，这是把短尺。谁有长尺？