a kind of oil的用法和樣例：
例句
- It's precisely that sort of slick sales-talk that I mistrust.
我不相信的正是那種油腔滑調的推銷(xiāo)宣傳。 - An oil used to separate the heavier components from a vapor mixture by absorption of the heavier components during intimate contacting of the oil and vapor.
從蒸氣混合物中將較重組分分離出來(lái)所用的一種油，其方法是在油和蒸氣緊密接觸的過(guò)程中吸收較重組分。
