1. Lub tshuab hluav taws xob ua haujlwm yuav tsum tsis txhob muab raus rau hauv dej, thiab cov xov hluav taws xob yuav tsum ua raws li kev tsim lub tsev kawm.
2. Qhov ntsuas kub ntawm cov raj xa dej nruab nrab zoo li 480 ℃ lossis ntau dua;
3. Ib puag ncig hauv cov av noo thiab qhuav tropics;
4. Qhov ntsuas kub ntawm huab cua tsawg dua-20 ℃;
5. Nws muaj cov pa taws, tawg lossis muaj plua plav ib puag ncig; tus hluav taws xob ua hluav taws xob yog qhov khoom tawg-tawg, yog li thov zam lub chaw muaj phom sij thaum txhim kho.
