我们通常认为气体是可压缩的, 液体是不可压缩的.We frequently regard gases as compressible, liquids as incompressible.现在我们对于不可压缩的材料来研究同样的问题.We now study the same problem for the incompressible materials.中子星是压缩的最终产物 吗 ?Does a neutron star repres...
NATO defense ministers wrap up their meeting in Brussels today.北约各国国防部长今天圆满结束了在布鲁塞尔的会议。Diana is taking the opportunity to wrap up the family presents.黛安娜利用这个机会将家人的礼物包起来。Make sure you wrap up in the cold wind.冷风中,你一定要穿暖....
这是该国面临的最紧迫的问题之一。It is one of the most pressing problems facing this country.他因商务上有紧迫事情而不能去度假.Pressing business matters prevented him from taking a holiday.最紧迫的问题是防洪.The most immediate problem is to control the floods....