英语语法分析

The ethanol extract of Saxifraga stolonifera Meerb had obvious antimicrobial effect.

所以，虎耳草乙醇提取物具有明显的抑菌活性。

Digitaria longiflora and new strain Agrsostis stolonifera had dark green color and high root vigor.

长花马唐、匍匐翦股颖新品系色泽深，根系活力较高。