Analogically, selectivity of 95 % - 97 % were att ained with Lindlar catalyst poisoned by lead.以Lindlar催化剂合成芳樟醇,脱氢芳樟醇转化率为99%～100%, 合成芳樟醇选择性为95%～97%.In dreams we think analogically.梦作类比的思考....
They're marvellous pictures in the tradition of Gainsborough.这些是具有庚斯博罗风格的绝妙画作。Gainsborough is known as an unemployment blackspot.众所周知，盖恩斯伯勒失业严重。The Gainsborough Hotel was really a boarding - house, a place people li...
它颈上的虹彩色羽毛闪烁着光芒.Light flashed from the iridescent feathers around its neck.耐酸、耐碱失重试验表明,该虹彩膜具有很好的化学稳定性.The experimental results show the good chemical durability of the luster film.摘要科根 - 端斯症候群是属于虹彩角膜内皮细胞 症候 群中的一种特殊型态,好发于女...
Setbacks can be a good thing, forcing you out of your complacency.挫折或许是件好事, 它可以迫使你克服自满情绪.The team manager has been quick to clamp down on the merest hint of complacency.球队主教练很快就消除了自满的小苗头。Complacency could easily result i...