Leonard made a rapid calculation: he'd never make it in time.伦纳德快速盘算了一下：他肯定赶不上了。Graham made a quick mental calculation.格雷厄姆很快就心算出来了。He is absorbed in the calculation of that difficult maths problem.他全神贯注地在算那道数学难题....
商业上采用的以镍作催化剂的氢化有两种.Commercially two main types of hydrogenations are carried out with Nickel catalyst.抑制剂和促进剂能影响氢化速率.Inhibitors and promoters may affect the rate of oxxidution.用六氢化邻苯二酸酐加入到邻苯二酸酐中,可使其放热反应减慢.Exothermic reac...
Beauty is an attitude. It has nothing to do with age.美是一种态度，与年龄无关。A lot of this has to do with power and greed.凡此种种都和权力与贪欲有关。We could all do with a cup of tea.要是能给我们都来杯茶就好了。...
Designer beers and trendy wines have replaced the good old British pint.时尚的啤酒和流行的葡萄酒已经取代了老牌的英国啤酒。Taking ingredients from the same source means the beers stay the same.取材自同一原材料意味着啤酒的口味始终如一。The restaurant is licensed, offe...