scale ratio的用法和樣例:
例句
- A paving asphalt penetration ratio improver was introduced.
介紹了一種提高道路瀝青針入度比的改進劑。
- The isotopic abundance ratio and content are determined with isotopic mass-spectrometry.
文章用同位素質譜法測定了輻照堆元件鈾的同位素豐度比和含量。
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