文
论文分享
演练场
杂货铺
论文推荐
字
编辑器下载
登录
注册
H S Maxim
发表
DISCUSSION. THE ELECTRICAL REGULATION OF THE SPEED OF STEAM ENGINES AND OTHER MOTORS FOR DRIVING DYNAMOS.
W. H. Preece, Gisbert Kapp, R E B Crompton, .