z hom thoob of elevator Tsis yog nws tsim nyog tsim, yooj yim hauv cov qauv thiab yooj yim rau kev khiav lag luam, nws kuj muaj kev poob siab zoo, muaj peev xwm tiv thaiv kev cuam tshuam thiab thermal rwb thaiv tsev kev ua tau zoo, kev ua haujlwm zoo thiab zoo.

