简单一点说，氢桥键，是一种特殊的共价键（从价键理论的观点看），价键理论要求两个原子之间通过各自提供一个满足要求的原子轨道的重叠来形成共价键。
分析表明，溶剂吡啶主要作用于煤基本结构单元芳核的侧链和桥键。
The results show that pyridine mainly ACTS with the side chains and bridge of basic unit in coals.
本发明公开了侧向二氟亚甲基醚桥键双末端烷基三联苯及其制备方法与应用。
The invention discloses side difluoro methylene ether bridged bond paired-end alkyl terphenyl, a preparation method and application thereof.
对该桥的边墩接头、系杆锚固键、钢混凝土接头及前次横梁等部分结构的细节设计做简要介绍。
The structure details such as the joint of side pier, anchor key of ties, steel-concrete transition section and front minor cross beam are introduced.
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