Radioactivity is the ejection of particles or radiation from the nucleus.放射性是原子从核中射出粒子或辐射的现象.Most of the crater is formed by ejection.大多数的弹坑是由于把泥土抛出而形成的.A rocket is propelled by the ejection of a portion of its mass to t...
Objective To Validte the Yeliabil of left ventricle ejection fraction ( LEF ) measured by reconstructed impedance cardiography ( RICG ).目的验证重建心阻抗图测量左室射血分数 ( LEF ) 的可靠性.Rapid prototyping manufacturing in the ice pattern i...
手边放一本便笺簿，以便有问题时随时记下。Keep a pad handy to jot down queries as they occur.她写在了便笺簿上。She wrote on a pad of paper.准备好铅笔和便笺簿，把你的一些想法记下来。Have a pad and pencil ready and jot down some of your thoughts....
Supplies are under increasing threat from overuse and pollution.由于滥用和污染，供应正受到日益严重的威胁。Love is a word cheapened by overuse.“爱”这个字眼用得太滥不值钱了。Don't overuse heated appliances on you hair.不要过多地使用电热器具弄头发。...
The use of a pressure canner is vital when canning meat.罐装牛肉时,压力罐的使用很重要.How many cans can a canner can if a canner can can cans?如果开罐刀能开罐头的话,一把开罐刀能开多少瓶罐头?...