Yi qi yi biao ling jian jie gou she ji

By Hongyu Xia, Jianzhong Shang

Subjects: Scientific apparatus and instruments, Design and construction

Description: Quan shu gong shi wu zhang, bao gua xu lun, yi qi, yi biao she ji ji chu zhi shi, yi biao dan xing yuan jian, ji gou ji qi zi you du de ji suan, gang gan chuan dong deng.