presolvant
A chemical substance or agent applied to a surface or material before the main cleaning or dissolving process to loosen contaminants. It is primarily used in industrial degreasing, dry cleaning, and specialized laboratory procedures to enhance the efficiency of the primary solvent.
例句
3 / 5Apply the presolvant to the grease stain and let it sit for five minutes before starting the wash cycle.
Apply the presolvant to the grease stain and let it sit for five minutes before starting the wash cycle.
The safety protocol requires technicians to use a non-corrosive presolvant when preparing the titanium components.
The safety protocol requires technicians to use a non-corrosive presolvant when preparing the titanium components.
You'll need a bit of presolvant to get that sticky residue off the windshield.
You'll need a bit of presolvant to get that sticky residue off the windshield.
词族
记忆技巧
Think of 'Pre' (before) and 'Solvant' (to dissolve). It is the liquid you use 'before' the main 'solvent' to do the heavy lifting.
快速测验
The technician recommended using a heavy-duty ________ before the steam cleaning process to ensure all oil was removed.
正确！
正确答案是： presolvant
例句
Apply the presolvant to the grease stain and let it sit for five minutes before starting the wash cycle.
everydayApply the presolvant to the grease stain and let it sit for five minutes before starting the wash cycle.
The safety protocol requires technicians to use a non-corrosive presolvant when preparing the titanium components.
formalThe safety protocol requires technicians to use a non-corrosive presolvant when preparing the titanium components.
You'll need a bit of presolvant to get that sticky residue off the windshield.
informalYou'll need a bit of presolvant to get that sticky residue off the windshield.
The experiment demonstrated that using a polar presolvant significantly increased the yield of the extracted alkaloids.
academicThe experiment demonstrated that using a polar presolvant significantly increased the yield of the extracted alkaloids.
We are currently negotiating a bulk contract for the supply of high-grade industrial presolvants for our manufacturing plants.
businessWe are currently negotiating a bulk contract for the supply of high-grade industrial presolvants for our manufacturing plants.
词族
常见搭配
常用短语
presolvant application
the act of applying a presolvant
dwell time for presolvant
the time a presolvant must remain on a surface to work
rinse away the presolvant
to wash off the initial cleaning agent
容易混淆的词
A solvent is the primary dissolving agent, while a presolvant is a preliminary agent used to prepare the surface.
A preservative keeps a substance from decaying, whereas a presolvant is used to help clean or dissolve something.
使用说明
The term is technical and most common in manufacturing, chemistry, and professional cleaning industries. It is often used as a countable noun when referring to different types of chemical mixtures.
常见错误
Learners often misspell the word as 'presolvent' (though both are technically used, 'presolvant' is frequent in specialized technical data sheets influenced by French nomenclature). It should not be used as a verb in general conversation.
记忆技巧
Think of 'Pre' (before) and 'Solvant' (to dissolve). It is the liquid you use 'before' the main 'solvent' to do the heavy lifting.
词源
Derived from the Latin prefix 'prae-' (before) and the verb 'solvere' (to loosen or untie).
语法模式
快速测验
The technician recommended using a heavy-duty ________ before the steam cleaning process to ensure all oil was removed.
正确！
正确答案是： presolvant
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