单词:Ibrāhīm, Nahr
单词:Ibrāhīm, Nahr 相关文章
1.Here am I then ready for all those gorgeous housewives sitting, around at home with nothing to do! 2.Geez these things are heavy! I sure hope I manage to sell a few all of them_ soon. 3.Here we are,
00:00.00]Unit Eight New ideas and Inventions [00:-1.00]China has produced many inventors throughout history. [00:-2.00]Studies show that from the 6th century B.C.to the 16th century A.D., [00:-3.00]there were 298 major inventions and discoveries in t
Scientists Develop a Robot That Can Assemble Itself 科学家们开发一个机器人 可以组装本身 Origami is the Japanese art of shaping paper to look like animals, flowers and other objects. Now, Harvard University scientists have modeled, or
Yal: Hey Don, look what I've got here! Don: Oh cool, its one of those little origami cranes. I didn't know you were into the whole origami thing. Y: Well the little paper figures are pretty cool, but what really excites me about origami are all of it
One of my favorite hobbies is origami, or Japanese paper folding. Origami is the art of folding paper in different ways to make beautiful objects such as a crane, box, frog, or balloon. The origin of origami dates back hundreds of years, and origami
589 、 受迫振动 forcedvibration 590 、 受迫振荡 forcedoscillation 591 、 和谐 harmony 592 、 周转齿轮;行星齿轮 epicyclicgear 593 、 固定夹;台夹 benchholdfast 594 、 固定