building block

Unsaturated transition metal thiocarbonyl complexes are building blocks for stable organometallic complexes and play important role in catalysis and biology.The CS molecule is isovalent with CO.

不饱和过渡金属硫代羰基化合物不仅在催化及生物上具有重要作，而且这些化合物是多稳定的金属有机化合物的结构单元。

Aerocrete building block product to replace non-burning and cement brick building block for building wall body top of products of material of products finally too.

加气混凝土砌块产品也是最终取代免烧砖和水泥砖砌块制品的建体材料的产品之最。