the refining of [material]
表示对某材料进行精炼的过程。
The refining of crude oil is a complex process.
原油的精炼是一个复杂的过程。
精炼，提纯
提炼；精炼
the process of removing impurities (as from oil or metals or sugar etc.)
提炼；精炼
Refinement (process of refining)
The refining of crude oil produces gasoline.
原油的精炼产生汽油。
用法提示：refining作为名词，表示精炼过程。
They are refining the gold to remove impurities.
他们正在提纯黄金以去除杂质。
用法提示：refining作为动词现在分词，与are构成进行时，表示提纯动作。
The company specializes in metal refining.
这家公司专门从事金属精炼。
用法提示：refining作为名词，表示精炼行业或过程。
表示对某材料进行精炼的过程。
The refining of crude oil is a complex process.
原油的精炼是一个复杂的过程。
作为复合名词，表示精炼某种材料。
Oil refining requires high temperatures.
石油精炼需要高温。
grammar · medium
易错句子The process involves a refining of crude oil.
正确表达The process involves refining of crude oil.
Refining 作为不可数名词，通常不加不定冠词 'a'。正确用法中，'refining' 前不加冠词，表示泛指的提纯过程。
grammar · medium
易错句子After several refinings, the metal becomes pure.
正确表达After several rounds of refining, the metal becomes pure.
Refining 是不可数名词，没有复数形式。应使用 'rounds of refining' 或 'refinement steps' 来表示多次提纯。
refining指具体提纯过程，refinement指精炼的程度或文雅品质
refining是名词或动名词表示过程，refined是形容词表示性质
refining是过程，refinery是场所
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