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美国科学家发明一种借助阳光可使杂草自行死亡的除草剂。其主要成份是一种氨基酸(氨基酸果糖酸)。这种除草剂通过阳光照射,使杂草内部引起连锁反应,形成一种物
American scientist invented a kind of herbicide that can make weeds die by sunshine. Its main ingredient is an amino acid (amino acid fructonic acid). This herbicide by sunlight, the weed caused by a chain reaction within the formation of a substance