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relative density的英文翻譯是什么意思，詞典釋義與在線翻譯：
英英釋義
Noun:
-
the ratio of the density of something to the density of a standard
relative density的用法和樣例：
例句
用作名詞 (n.)
- The analysis indicates that micropacking silica fume works to the density and relative density of RPC, and its pozzolanic effect helps the strength of RPC.
硅灰的微填充效應有利于提高活性粉末混凝土的密度和相對密度，而火山灰效應有利于提高其強度。
