The isocyanates can be obtained by the fluorination of nitrogenous cylic or acyclic molecules.异氰酸酯可由含氯的环(或非环)状分子氟化而得.The inheritance hierarchy is actually a directed acyclic graph.注意:继承实际上是开放的层次关系.The Acyclic Dependencie...
NATO has suspended flights by air - to - air refuelling tankers from Manas.北约已暂停玛纳斯空中加油机的飞行.Under tangibles, we find hard assets like land, gold coins, factories and oil tankers.硬资产指的是土地 、 硬币 、 工厂或油轮等.They should stop of...