Development of a Lunar Rock Drill and Subsurface Sampling System The development of a spacecraft electric powered subsurface sampler for drilling a 1-1/4 inch diameter hole in the lunar surface to a maximum depth of 5 fe... VA Peckham,JP Dallas - 《Aerospace IEEE Transactions on》 被引量:...
Mud pulse telemetry is a method of transmitting information from the vicinity of the drill bit to the surface drilling platform while drilling. Information... RF Spinnler,FA Stone 被引量: 9发表: 1978年 A Study On Tele-Collaborative Product Development The tele-collaborative product development (Te...