ppb翻譯，ppb的意思，ppb同義詞，ppb的反義詞，ppb短語詞匯

詞語：ppb

ppb的解釋

ppbabbr. （美）十億分之一（Parts Per Billion）

ppb的意思

PPB 溴代十五烷基吡啶;十億分之一;part per billion;十億分之幾;ppb level 十億分率水平;PPB ProgrammedPatchBoard 程控接線板;PPB PulsedPowerAmplifier 脈衝功率放大器;PPB POILOT PUSH BUTTON 罩光式按鈕;

ppb的參考例句

1.For RAPD markers, 85 polymorphic bands were produced, percentage of polymorphic bands (PPB) were 6

9. 4%. RAPD引物共擴增到85條清晰的多態性條帶，多態性條帶比率為69。4%。

2.FSIS Western laboratory repeated analysis and reported at the Level of Detection for the Western Laboratory of 50 ppb. 西方安全檢驗局實驗室反覆分析和報告水平的檢測實驗室西部50濃度。

3.One of the 6 samples from Day 9 had detectable levels of melamine (<500 ppb); all other of the 41 samples did not contain detectable levels of melamine. 其中6樣本9日探測水平的三聚氰胺「（<500濃度）；所有其他的41個樣品未檢出含有三聚氰胺水平。