酰化最高产率达到67.0%。
这样可以得到最高产率的反应中间物,即目的产物。
This will allow a maximum yield of the react intermediate which is the desired product.
这样可以得到最高产率的反应中间物,即目的产物。
This will allow a maximum yield of the reaction intermediate which is the desired product.
全球范围具有最高产妇死亡率的20个国家中有19个在非洲;该区域新生儿的死亡率也居世界之首。
Of the 20 countries with the highest maternal mortality ratios worldwide, 19 are in Africa; and the Region has the highest neonatal death rate in the world.
全球范围具有最高产妇死亡率的20个国家中有19个在非洲;该区域新生儿的死亡率也居世界之首。
Of the 20 countries with the highest maternal mortality ratios worldwide, 19 are in Africa; and the Region has the highest neonatal death rate in the world.
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