e和a是什麼意思

The ethyl acetate extract of Typha latifolia inhibit the growth of some algae.

對香蒲類植物的花粉蒲黃中的'抑藻物質進行提取、分離、鑑定。

Conclusion Bidens ethyl acetate extract has a significant hypoglycemic activity.

結論鬼針草乙酸乙酯提取物有顯著的降糖活性。

C. The quench is performed with aqueous sodium hydrogen carbonate and ethyl acetate.

三是演出的淬火、乙酸乙酯碳酸氫鈉水溶液。

Juemingzi extracts were prepared with ethyl acetate, n-butanol and water respectively.

以決明子為原料，分別用乙酸乙酯、正丁醇和水製備粗提取物。

Ethyl acetate is an excellent solvent and extractant and is an important chemical material too.

乙酸乙酯是性能優良的溶劑、萃取劑和重要的化工原料。