英语语法分析

Triacontanol causes promotional effects on the decrease in number of empty grains in hybrid rice.

三十烷醇对降低杂交稻空壳粒也有效果，对千粒重无明显影响。

Elemental quantitative analysis and IR spectral analysis show the substance to be 1-triacontanol.

元素定量分析及红外光谱分析表明：该物质是三十烷醇- 1。

The invention discovers novel medical medicinal application for triacontanol as the known compound and develops a new application field.

本发明对已知化合物三十烷醇发掘了 新的医疗用途，开拓了一个新的应用领域。