Differential action
[计] 差动作用, 微分作用
🧩 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”
action
['ækʃən]
n. 行动，活动;功能，作用;手段;[法]诉讼;
🗣️ 情景例句
We haven't had any more news from the frontier, so we'll just have to be patiend.
我们还没得到来自前方的进一步消息，所以我们只有耐心等待。
How long has it been since you've heard from your uncle?
自从你听到叔叔的消息有多长时间了？
After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour.
比赛结束后，坎贝尔非常失望地得知他的平均时速是299英里。