这些参数导致了特定固定相的分离行为.These parameters contribute to the chromatographic behaviour of a particular stationary phase.方法使用薄层色谱法, 以硅胶 GF254 为固定相.Methods: TLC method was applied , the stationary phase was GF _ ( 254 ).考察了一些手性化合物...
There is a risk of transmission of the virus between hypodermic users.接受皮下注射者有相互传染病毒的可能.This is a medical supplies company that produces disposable hypodermic syringes.这是一家生产多用途皮下注射器的药材公司.Is the move factor that inject u...
...an old quayside warehouse.码头上的一个旧仓库A - type quayside container crane with jib - bridge luffing system as the main working part is brought out.提出一种以臂桥架变幅系统为主要工作机构的岸边集装箱起重机.A large group had gathered on the quayside to ...