Tshuab Room Tsawg Neeg nrog caij of elevator
-
Neeg nrog caij Traction of Elevator Ntawm Tshuab Roomless
Tianhongyi tshuab chav tsev tsawg tus neeg nrog caij of elevator txais kev sib koom ua ke ntawm kev sib koom ua ke ntawm cov tshuab hluav taws xob ntawm microcomputer tswj thiab lub tshuab inverter, uas ua tiav kev txhim kho cov lus teb ceev thiab kev ntseeg tau ntawm lub kaw lus.