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...
Kitty's family was unworldly, unimpressed by power, or money.基蒂一家清心寡欲，淡泊金钱与权力。She was so young, so unworldly.她太年轻，太不懂人情世故。The landscape had a stark, unworldly beauty.那景色有一种简朴、超凡的美。...
They see nothing but gorgeousness and splendour.他们所看到的只是豪华和奢侈的场面.This style of pajamas for women gives people a feeling of gorgeousness, sexiness and youthfulness.这种女式睡衣,带给人华丽 、 性感和年轻的感觉....
我一直乐于尝试新产品。I'm always pleased to try out a new variety.一系列技术问题延误了新产品的上市。A series of technical foul-ups delayed the launch of the new product.该公司正竭力为其新产品寻找买主。The company is struggling to find buyers for its new produ...