The ionisation of the low atmosphere could also be the effect of the radioactive emissions of the Earth, especially when the X radiation works.

大气中的低电离能也将是影响的地球放射性排放量，尤其是当X射线辐射工程。

The method of determination of medroxyprogesterone acetate residue in aquatic product by liquid chromatography with electrospray ionisation tandem mass spectrometric detection is described.

建立了快速、灵敏的液相色谱-电喷雾串联质谱测定水产品中醋酸甲羟孕酮的残留量的方法。