Metal cleaning performance of geminate sulphonate surfactant was studied .

研究了双生磺酸盐表面活性剂的金属清洗性能。

Today scientists use thermal neutrons , x-rays , or ethyl methane sulphonate , a harsh carcinogenic chemical-anything that will damage dna-to generate mutant cereals .

如今科学家们使用热中子、x射线还有甲烷磺酸乙酯（一种强致癌化学剂）任何可以破坏dna的东西来制造谷物变异。

Metal cleaning performance of geminate sulphonate surfactant .

双生磺酸盐表面活性剂的金属清洗性能。