subseq相关论文
In recent years, Galium aparine L. has not been controlled by tribenuron-methyl in major Chinese winter wheat fields. Th......
In tube hydroforming with axial feeding,under the effect of coupled internal pressure and axial stress,wrinkles often oc......
广山铁矿原设计采用无底柱分段崩落法。由于矿石稳固性差,采矿巷道跨冒严重,近几年来应用上向分段废石、尾砂胶结嗣后充填采矿法,......