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...
However, the modulation - demodulation of ultraviolet and voice transmission are the key technologies.然而, 紫外光通信的 调制解调技术 以及语音传输是整个系统的关键难点.FM receiver through demodulation , the frequency signals into sound signals.调频接收机通过...
His body reposes in the local church.他的遗体安放在当地教堂里.The statue reposes on a pedestal.雕像安在台座上.This seam of coal reposes on a layer of clay.这个煤层处于一层黏土岩之上....
...demand for consumable articles.对消耗品的需求Toner, Drum Unit , Ink Cartridge or any other consumable items.炭粉 、 打印鼓 、 墨盒或其他消耗品.Spare Parts management, keep adequate spare parts and consumable.备品备件管理, 保证有足够的备品备件.Consumer eco...