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pro vyhledávání: '"Xi Dong Chen"'
Publikováno v:
Advanced Materials Research. :3182-3185
Through force analysis of running roller for multi stage and double-action roller rotary pump, the force equilibrium equation about roller was established and the calculation formula of rotor slot profile was deduced for the first time. Using an actu
Autor:
Chuan Can Chen, Xi Dong Chen
Publikováno v:
Advanced Materials Research. :340-344
In order to make better use of excavator in foundation pit, a new excavator with telescopic arm is designed in this paper. The innovations mainly manifests in four aspects. First, the use of telescopic arm decreases the height for the excavation in f