Lignin is a characteristic component of secondary walls.木质素是次生壁成份的特征.A new syntan product prepared with tar phenol and lignin sulfonic acid.以工业副产物木素磺酸和焦油酚为主要原料研制出一种新的合成鞣剂.Alkali lignin is an abundant, cheap and renewable...
OBJECTIVE To improve the synthetic procedure of antipsychotic drug aripip - azole.目的改进抗精神病药阿立哌唑的合成工艺.Objective : To develop the method for the determination of 4 - methyl imid azole in caramel.目的: 建立 4- 甲基咪唑的快速定量测定方法.Azo...
穿过丛林的旅行充满了危险.The journey through the jungle was perilous.我们现在已经来到了丛林的边缘.We were now at the margin of the thicket.这种香调唤起森林和丛林的气息.This tone evokes the smell of forests and undergrowth....
今天地方选举的投票一开始就人头攒动。There has been a busy start to polling in today's local elections.如果他要求太多,工会就会投票撤换他。If he demands too much, the unions will vote him down.今天执行委员会投票一致否决了这些提案。Today its executive committee voted unan...