Colourful carvings are traditional Chinese arts and handicrafts. Qi Zheng, who was born and grew up in Zibo, the porcelain capital in north China, has had great
在美国页岩油气开采量逐年攀升,副产物乙烷的供应量不断增大的背景,诞生了一种用于运输乙烷的新型液化气体运输船——超大型液化乙烷运输船(Very Large Ethane Carrier,VLEC)。近年来,国内各大造船厂陆续接到了大量的VLEC的建造订单,然而相关的建造经验却比较欠缺,尤其在针对VLEC建造过程中的防火措施研究方面还处于起步阶段。发明问题的解决理论(TRIZ理论)是最为著名的一个创新