PPB的意思
「PPB」經常作為「Parts Per Billion」的縮寫來使用,中文意思:「十億分之一」。
PPB(十億分之一)詳細解釋
- 英文縮寫詞:PPB
- 英文單詞:Parts Per Billion
- 中文簡要解釋:十億分之一
- 流行度:2167
- 分類:Governmental
- 領域:FDA
英文縮寫PPB的擴展資料
- To be sure, the concentrations of these pharmaceuticals are tiny, measured in quantities of parts per billion or trillion, far below the levels of a medical dose.要肯定的是這些藥物濃度極少,量是以每10億或萬億為單位來計算。遠遠要低于醫用水平。
- One thing worthy of note is that the detection limit of BRB is at the parts per billion level, which can satisfy the requirement of Environmental Protection Agency ( EPA ).值得一提的是,BRB檢測極限甚至可達ppb級,達到了環境保護局(EPA)對汞離子的檢測要求。
- Theories and Technique Studies on Ultra-Violet Fluorescence Detection of Sulfur Dioxide in Air at the Parts Per Billion(PPB) LevelPpb級大氣二氧化硫紫外熒光檢測理論與實現技術研究