所说的硅氧烷组合物中,含有两类硅氧键.The pertinent siloxane compounds contain two silicon hydride bonds.游离的氢氧离子会进一步和硅氧网络反应.The free hydroxyl ion is involved in a further reaction with the silica network.富于 硅氧 的岩流及罗依山霏细岩的喷出作用占据了广大面积.The ex...
He programmed his computer to compare all the possible combinations.他给他的计算机编制了一套程序，以比较所有可能的组合。They agreed to work co-operatively to ease tensions wherever possible.他们同意互相配合尽一切努力缓解紧张局势。It was imperative that he act as nat...