Electrodes measure specific ionic species and not complexes of the species.电极测定的是特定的离子形式而不是络合形式.In general ionic polymerization can be initiated through acidic or basic compounds.一般来讲,离子型聚合可以被酸类或碱类化合物所引发.The heats of for...
We are here to protect and assist the weak and infirm.我们来这里保护、帮助年迈体弱者。The public is urgently requested to assist police in tracing this man.紧急要求公众帮助警方追踪此人。The Authority will provide a welfare worker to assist you.当局会派一名义...