Thanks to synthetic fertilisers, Mr Borlaug points out, global cereal production tripled between 1950 and 2000, but the amount of land used increased by only 10%.
The synthetic method of taurine was improved by shortening the reaction time and decreasing the amount of hydrobromic acid.
对牛磺酸的合成方法进行了改进。缩短了反应时间,减少了氢溴酸的用量。
3
Modifier was added on medium-term of synthetic process with its adding amount being 3%, a favourable low toxic modified UF resin adhesive could be synthesized on the basis of colloid theory.