Glyoxylic acid was rapidly synthesized by catalytic oxidation of glyoxal with H 2 O 2.在催化剂存在下,用双氧水氧化乙二醛溶液快速合成了乙醛酸.Glyoxal is prepared with waste liquid propellant HNO 3 - 27 S and ethanal.利用报废的液体推进剂硝酸-27S和乙醛制备乙二醛.There a...
The carbohydrate portion is made of gala ctose, glucosamine, fucose and sialic acid.碳水化合物部分由半乳糖,葡糖胺, 岩藻糖和唾液酸组成.Glucosamine ( from glucose ) is one of the commonest amino sugars.氨基葡萄糖 ( 来自葡萄糖 ) 是最常见的氨基糖之一.OBJECTIVE To stu...
He had developed a fearsome reputation for intimidating people.他曾因恐吓他人而令人闻风丧胆。I drove for a while across this fearsome emptiness.我开车开了好一阵穿过这片可怕的空旷之地。Its fearsome appearance struck terror into their hearts.它那可怕的样子使他们胆战心惊....
Main materials: Shrimps, Squid, Onion, Carrot, Bean milk skin, marinas.原料: 虾仁 、 鱿鱼 、 洋葱 、 胡萝卜 、 特级豆腐皮 、 蛋黄酱.Boat owners who like to live on their boats stay in marinas.喜欢呆在游艇的人住在小游艇船坞旁.They will float indefinitely when d...