介绍了利用BTC生产 过程中产生的副产品氯化氢气体合成盐酸乙脒的工艺研究.This paper introduces the production technology of acetamidine hydrochloride and hydrogen chloride produced in BTC synthesis.采用重量分析法测定盐酸乙脒中难挥发杂质的含量.The content of in volatile impuriti...
Putative oncogenes, tumour suppressor genes and proto - oncogenes implicated in cancer are also included.数据库十分专业.推定癌变, 肿瘤压迫基因和蛋白相关癌变信息也有涉及.The dye is reduced by dehydrogenase enzymes released by viable tumour cells.染料被存活...
Hippos are unable to submerge in the few remaining water holes...在仅剩的几个水坑里，河马根本无法没入水中。But exactly where hippos sit on the artiodactyl family tree has proved devilishly difficult to discern.河马也属于偶蹄目,这点专家并无异议,但是它们到底位在偶蹄动物演...