The preforging's influence research on large Aluminium alloy shell;
预压对大型铝合金壳锻件成形的影响
Structure analysing of large skip;
大型提煤箕斗的结构分析
Technical and economic problems in large-scaled fixed-roof oil tank,;
固定顶油罐大型化的技术经济问题
Design of large-scale display wall system;
大型拼接显示系统的设计方法
Acute toxicity tests of four new pesticides were conducted in the lab with Scenedesmus obliquus,Daphnia magna and Brachydanio rerio as subject to evaluate the safety of pesticides in the aquatic ecosystem.