The manuscript includes title, abstract, key words, introduction, materials and methods, results and analysis, conclusions and discussion, references, etc. The unit of measurement shall conform to the international standard, and the name of the legal unit of measurement shall be adopted by the state. All are written in the international symbol of the unit. Such as length unit with km, m, cm, mm, μm; mass unit with kg, g, mg ; area unit with km2, hm2, m2, cm2, mm2; volume unit with m3, cm3, mm3, and L, mL; the concentration unit with mg/kg, mg/L, mol/L. No more mu (667m2), ppm (mg/kg). The chart is inserted in word format.