常見例句雙語例句Their Aw property added in water is investigated and the proportion for the compound phosphate ester is optimized by means of four - ball tester.利用四球試驗機考察了添加到水溶液中的抗磨性能,并優(yōu)化了復合磷酸酯的配比。The heat cured sand of Al-Mg-B compound phosphate inorganic binder was modified by ultrasonic oscillation to binder and adding organic polymer YPPJ while mixing of sand.采用對所研制的粘結劑進行超聲波振蕩及混砂時加入有機高聚物YPPJ對鋁鎂硼復合磷酸鹽鑄造粘結劑熱硬砂進行改性。The waste residue discharged from the production of compound phosphate fertilizer occupies large area of land and pollutes surrounding environment, which causes environmental problems hard to control.磷復肥生產(chǎn)排放的磷石膏廢渣堆存占地,污染環(huán)境,已成為亟待解決的難題。 返回 compound phosphate