検索内容:
(inorganic chemistry) aqua regia
Aqua regia is needed to dissolve this gold nugget.
melt, dissolve
I put the bowl in a water bath to melt the chocolate.
needed, necessary
Your cooperation is needed for this project.
need, necessity
I need you.
necessary evil
He thinks that war is a necessary evil.
necessity (quality or state of being necessary, unavoidable, or absolutely requisite)
Do you understand the necessity of this project?
unnecessary
That information is unnecessary.
needlessness
That information is completely unnecessary.
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DiQt（ディクト）
無料
★★★★★★★★★★
