Qhov kev txwv tawg ntawm ethylene hauv huab cua yog nyob nruab nrab 2.7% thiab 36%.
Thaum ethylene sib tov nrog cua, yog hais tias nws concentration poob nyob rau hauv no ntau yam, nws tuaj yeem ignite thiab tawg thaum sib cuag nrog hluav taws. Concentrations saum toj no 36% los yog hauv qab no 2.7% yuav tsis ua rau muaj kev tawg.
WhatsApp
Luam theej duab QR Code los pib WhatsApp tham nrog peb.