Methods:The antimicrobial tests were studied by using tubes serial dilution method.
方法：采用试管连续稀释法，对清咽袋泡剂进行了体外抗菌试验研究。
Flow injection serial dilution techniques was combined with atomic absorption spectrometry (AAS) techniques to determine Ca in acid rain without samples' dilution. This method was fast and simple.
提出了应用流动注射梯度稀释法与原子吸收光度法相结合，样品不经稀释便可同时测定酸雨中不同浓度的钙。方法快速简便。
There were 376 strains isolated from the surface epiphytes of apples and rhizosphere soil using the method of serial dilution.
拮抗菌的分离和筛选：用稀释平板法，从果实表面以及果园根际土壤中分离得到376个菌株。
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