可以实验测定氘的结合能.The binding energy of the deuteron can be found experimentally.更为活跃的是氢的较重同位素, 氘和氚.More reactive are the heavier isotopes of hydrogen, deuterium and tritium.对于单晶,氘化的这种优点并不是必不可少的.This advisability of deuteratio...
He continued to use obscene language and also to make threats.他仍然不住口地说些污言秽语，而且还进行了威胁。Regard problems and controversial issues as nuisances or threats to their ego.视问题和争论为麻烦和对自我的威胁.This sangfroid could be tested by severa...
窗帘、桌巾、盆栽、台灯,这些小东西都可以创造大效果.I put up curtains a tablecloth a potted plant a lamp.此外, 这种桌巾还有最实际的功能.And yet, this cloth gives the most practical service.采购产品纸餐巾,用纸糊桌巾, 国际的礼品箱子, 运送者袋子, 现代的纺织品对于桌子和厨房.Paper Napkins , Paper Tabl...
“海伦走之前吃了点儿东西，”塞西尔急忙插了一句。"Helen had something to eat before she left," put in Cecil anxiously.塞西尔此时开始慌张起来，连忙发射了两枚遇险信号火箭。Cecil now began to panic and fired off two distress rockets.塞西尔继承了斯坦福德附近的一处家族房产。Cecil inherited a fam...