With lastingness of infection, the productive rate of reactive oxygen species decreased gradually, and photosynthesis also weakened.

随着感染时间的不断延长，活性氧的产生速率逐渐降低，同时光合作用逐渐减弱。

youdao

The productive rate can achieve 76.72% and 70% of epoxy group remained.

高聚物收率可达76.72%，体系中的环氧基团约70%被保留下来。

youdao

The results showed aspergillus niger BN fungus, and the productive rate of gutta - perch increased 13.3 %.

结果表明，黑曲霉BN易于分解杜仲叶， 且经其发酵处理后胶得率可提高13.3%。

youdao

On television, Romney argued that his extremely low capital gains rate is productive.

FORBES: East of Eden: Mitt Romney's 2011 Returns

On the tax front, the Obama administration's almost singular focus on health care has detracted from its plans to raise the rate of taxation on the productive efforts of the rich.

FORBES: Political Economy

For the most productive members of society, our progressive tax rate removes the incentive for investment.

FORBES: Tax on Dividend-Paying Stocks Rising to 74%