Tritium is one of the mildest radioactive isotopes.氚是最和缓的放射性同位素之一.More reactive are the heavier isotopes of hydrogen, deuterium and tritium.更为活跃的是氢的较重同位素, 氘和氚.Tritium has a half - life of 12.4 years.氚的半衰期为12.4年,地球形成时的氚早已...
...tritium, a radioactive isotope of hydrogen.氢的放射性同位素氚Tritium has a half - life of 12.4 years.氚的半衰期为12.4年,地球形成时的氚早已不存在.The Energy Secretary hopes to bring on line a safer new tritium production reactor...能源大臣希望能投产一座更安全的...
钡以重晶石形态 ( 硫酸钡 ) 在工业上用作油漆的白色涂料.Barium as barite ( barium sulfate ) is used industrially as a white pigment for paint.硫酸钡必须是无块的粉末.The barium sulfate must be a lump - free powder.EDTMPS对硫酸钙、硫酸钡垢的阻垢效果好.EDTMPS shows better an...
Freelancer is toilsome and enjoyable; it is a challengeable occupation full of more feelings of achievement!自由翻译是辛苦的、也是快乐的; 是具有挑战性的,更是具有成就感的职业!Prii had become fluent in German during the Wehrmacht's occupation of Es...
Mum wasn't very domesticated.妈妈不是很喜欢干家务活。He is thoroughly domesticated and cooks a delicious chicken casserole.他精于家务,烹制的砂锅炖小鸡非常可口.Cows were domesticated to provide us with milk.人们饲养奶牛来为我们提供牛奶....
He may suddenly take a dislike to foods that he's previously enjoyed.对以前爱吃的食物，他兴许突然就没了胃口。Norma is said to dislike the glare of publicity.据说诺尔玛不喜欢被人过多关注。Years of dislike boiled over and blows were exchanged.多年的厌恶之情终于...