Scarce resources,precedence and non-determined time-lag are three constraints commonly found in small and medium manufacturing enterprises(SMEs),which are deeme
The protrusion of the planning of numerical intelligent early-warning and tracking system in this study which can ease triggerman’s work strength,lay the next
Hydraulic cylinders are divided into single-rod asymmetric cylinders and double-rod symmetric cylinders. The single-rod asymmetric cylinder has the advantages o