Check the accelerograph handle termly, and find out if the clutch handle can turn flexibly.应定期检查油门手柄,离合手柄是否转动灵活,有无卡涩现象.This rate includes big and small of the accelerograph , and direction, etc on the radio.这个比例包括油门的大小, ...
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...