Asymmetric 1, 3 - dipolar cycloaddition can be strongly catalyzed by chiral oxazaborolidines.手性唑硼烷酮能够催化不对称1, 3偶极加成反应并取得很好的效果.Most people's faces are asymmetric.大多数人的脸不对称。There are two DesB 1 - DPI moleCUles in an as...
Most people's faces are asymmetric.大多数人的脸不对称。We have made no reference to asymmetric carbon atoms.我们未曾涉及不对称碳原子.Asymmetric 1, 3 - dipolar cycloaddition can be strongly catalyzed by chiral oxazaborolidines.手性唑硼烷酮能够催化不...
The nondescript bacteria were responsible for the infectivity of the filtrate.这种滤液的侵染性应归之于不能描述的细菌.The infectivity and other properties of viruses can be assayed by several methods.病毒的传染性及其它性质可通过几种方法鉴定.Viruses do not loos...
He gave me an approving nod.他向我点头表示同意。Expertise in making checking approving piping drawings like isometrics layouts support drawings etc.具有制作审查和批准管道制图的专业知识如等距图规划图和附图等.Procedures for approving and issuing work authorizat...
Tomorrow without fail he would be at the old riverside warehouse.明天他一定会在河边的旧仓库里。They walked back along the riverside.他们沿着河边走回来了。a walk by the riverside河边漫步...
a pragmatic approach to management problems对管理问题采取的务实做法They're pragmatic about the spending cuts.他们在削减开支方面很务实.We need to adopt a more pragmatic approach.我们需要采用一种更为实际的方法....
Sleep would be eschewed , I yearned for comfort, and company eased the etching of loneliness.此时睡眠已成了多余, 我渴望陪伴和安慰来减轻孤独的侵蚀.I eschewed upbraiding, I curtailed remonstrance.我避免责备,少作规劝.Although he appeared to enjoy a jet-sett...