multi-phaj suav tshuab packing

Siv rau hauv kev lag luam teeb pom kev zoo, khoom noj khoom haus, dej haus, khoom qab zib, khoom siv kev cai, kos duab thiab khoom siv tes ua, cov cuab yeej kho vajtse, khoom siv txhua hnub, khoom siv tshuaj, xws li deb deb infrared contraction tshuab. Tom qab ntim cov khoom tuaj yeem raug ntim, noo-ntawv pov thawj, tiv thaiv kom tsis txhob muaj kuab paug, tiv thaiv cov khoom los ntawm kev kub ntxhov sab nraud, nrog qee lub ncoo, siv dav hauv ntau yam ntawm cov khoom ntim me me. Lub tshuab hluav taws xob tsis tuaj yeem nqus, qhov ua rau qhov kev tsis ua haujlwm no feem ntau yog kev txhaum sab hauv, solenoid coil hlawv, kab cuam tshuam thiab lwm yam, cov kev daws teeb meem yog: ua ntej saib seb puas muaj teeb meem sab hauv lossis sab nraud.