童年的孩子单纯无忧,那时的喜怒哀乐也都是发自内心最真实的情感,让人每每忆起,都心怀珍惜。对蒂莎一家人来说,奶奶家是他们在节假......

It is quite normal that in our daily communication,people sometimes do not produce utterances that containing their real......

Doctors in Britain are warning of an obe-sity(肥胖)time bomb,when children who arealready overweight grow up.So,what sh......

The geometries of reactant, product and transition state of the title reaction have been optimized by using density func......

In this paper,a survey of octree representation and its applications in CAD is presented.Theoctree representation may b......

Phase probe system is an important part of the cyclotron beam diagnostic systems. Inside the cyclotron, the beam has to ......

Sampling errors of the global mean sea level derived from TOPEX/Poseidon (T/P) altimetry are explored using 31/ 4a of ed......

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