蒸发的物质能再凝结, 形成新的粒子.Evaporated material can recondense, forming new particles.吸气离子泵通过剩余气体与蒸发的金属之间的化学反应减少了内腔的压力.Getter - ion pumps decrease chamber pressure by chemical reaction of residual gases with an evaporated metal.它通...
Some people are more demonstrative than others.有些人更容易流露感情。These figures are demonstrative of our progress.这些数字表明了我们的进步.He greeted us in a demonstrative manner.他热情地和我们打招呼....
I complained about his disgraceful behaviour.我抱怨说他的行为丢人现眼。I think what's happening is disgraceful.我认为发生的一切很丢人。His behaviour was absolutely disgraceful!他的行为真可耻！...
I underwent aversion therapy for my addiction to smoking.我因为吸烟成瘾接受了厌恶疗法的治疗.He had an aversion to getting up early.他十分讨厌早起。Have you developed an aversion to babies?你对婴儿感到厌恶了吗？a temperamental aversion to work禀性不喜欢工作Many pe...
Oral contraceptives are readily available.口服避孕药容易得到.Some barrier contraceptives also help to protect against sexually transmitted infections.有些屏障避孕还有助于预防性传播疾病.Continuous Oral Contraceptives: Are Bleeding Patterns Depende...