Tam sim no cov teeb meem ntawm cov khoom siv hluav taws xob tau raug daws ua tiav ua tsaug rau kev siv cov khoom siv hluav taws xob ntawm lub zog hluav taws xob, uas yog qhov tseem ceeb rau cov lag luam uas muaj peev xwm tsim khoom me me. Xws li qhov chaw, ntawm chav kawm, tuaj yeem ua haujlwm ua cov nroj tsuag boiler. Lawv kuj muaj txiaj ntsig zoo hauv cov cua sov ntawm cov tsev nyob