lubricant
/ˈluːbrɪkənt/ (bre, ipa) · /ˈluːbrɪkənt/ (ame, ipa) · /ˈlü-bri-kənt/ (ame, mw)
lubricant — 名詞
- lubricantsingular
- lubricantsplural
1. A substance, such as oil or grease, that is placed between two surfaces that rub
潤滑劑
減少摩擦、使機件順暢的物質
A substance, such as oil or grease, that is placed between two surfaces that rub together so they slide more easily and suffer less damage or wear.
Mei-Lin sprayed some lubricant on the noisy door hinge, and the noise stopped at once.
Mei-Lin 在吱吱作響的門鉸鏈上噴了些潤滑劑，噪音立刻就消失了。
collocation: spray + lubricant + on [object]
The bicycle mechanic told Javier to apply a good lubricant to the chain every month.
腳踏車師傅告訴 Javier 每個月都要在鏈條上塗上優質的潤滑劑。
collocation: apply + lubricant + to [object]
Without lubricant, the parts inside a factory machine get too hot and break down quickly.
沒有潤滑劑，工廠機器內部的零件會過熱並迅速故障。
Aunt Keiko keeps a can of lubricant for sticky drawers and rusty scissors.
Keiko 阿姨放了一罐潤滑劑在家裡，用來處理卡住的抽屜和生鏽的剪刀。
Dr. Nakamura explained that oil works as a lubricant between metal parts of an engine.
Nakamura 醫生說明，機油在引擎金屬零件之間扮演潤滑劑的角色。
- oil
The most common type of lubricant, especially for engines and machinery. 'Oil' is a specific substance, while 'lubricant' is a broader category.
- grease
A thick, semi-solid lubricant used for heavy machinery and bearings. Thicker and stickier than oil.
- WD-40
A well-known brand of spray lubricant, often used generically for any aerosol lubricant. Informal usage.
- abrasive
A substance that wears surfaces down by rubbing, the opposite of protecting them with a lubricant.
文法句型
lubricant + for [object]
apply/use/spray + lubricant
用法筆記
This noun is both countable ("a good lubricant") and uncountable ("some lubricant"). When referring to a specific product or type, the countable form is common: "This is an excellent lubricant for bicycle chains." When talking about the substance in general or an unspecified amount, use the uncountable form: "The machine needs more lubricant."