The ionosphere is that region of space contatining electrically charged species.电离层是指含有带电物质的空间区域.Its upper limit is determined by the conditions in the ionosphere.其上限由电离层的状态而决定.Rockets and artificial satellites can go fa...
Its upper limit is determined by the conditions in the ionosphere.其上限由电离层的状态而决定.The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time.电离层是随机时变, 各向异性, 非均匀 、 色散的复杂介质....
She was going to try her luck at the Las Vegas casinos.她打算去拉斯韦加斯的赌场碰碰运气。Las Vegas, famed for its casinos以赌场著名的拉斯韦加斯The casinos in Las Vegas had better watch out since I'm obviously on a lucky streak!拉斯韦加斯的赌场要小心了，因为我...
“你知道，我交朋友有一套的，”她故意补充说。"I have a knack for making friends, you know," she added meaningfully.他是个爱交朋友的人。He is a clubbable chap.她交朋友往往热情而超俗。She tends to have intense, spiritualized friendships....