low-grade lignite containing germanium的用法和樣例：
例句
- Because they are antibiotics, low bioburden of these formulations would be expected at the time of batching.
因為它們是抗生素，所以在定量的時候處方里有較低的微生物污染水平。 - Why would the laser tweezers be a suoerior method to dilution and liquid enrichment for obtaining an organism present in a sanple in low numbers?
在顯微鏡下，激光產生力拖動需要的微生物，轉移至滅菌的培養基上，而經典的方法沒能培養很多微生物。
