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.

加气混凝土砌块产也是最终取代免烧砖水泥砖砌块制筑用墙体材产之最。

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.

过渡金属硫代羰基化合物仅在催化及生物上具有重要作用，而且这些化合物是许多稳定金属有机化合物结构单元。