Radioactivity Ntawm Ntuj Pob Zeb

Qib radioactivity ntawm ntuj pob zeb tuaj yeem muab faib ua peb pawg: A, B thiab C.
Cov khoom siv Class A tuaj yeem siv rau hauv cov tsev ua haujlwm thiab chav tsev neeg. Cov khoom siv hauv chav kawm B muaj cov khoom siv hluav taws xob ntau dua li cov khoom siv hauv chav kawm A, thiab tsis tuaj yeem siv rau kev kho kom zoo nkauj sab hauv ntawm chav, tab sis tuaj yeem siv rau kev kho kom zoo nkauj sab hauv thiab sab nrauv ntawm lub tsev; Cov khoom siv hauv chav kawm C muaj hluav taws xob ntau dua, thiab tsuas yog siv tau rau sab nrauv tiav ntawm cov tsev.
Ntawm cov pob zeb ntuj, cov xov tooj cua muaj nyob rau hauv Chav Kawm A, suav nrog paj paj liab, liab liab, Taiwan liab, Xinjiang liab, Shidao liab, Anxi liab, maple nplooj liab, Xilihong, Tianshan dawb hemp, Tianshan liab, Xiamen liab, thiab lwm yam; Qeb B suav nrog Indian Liab thiab Guilin Liab; Yongding Liab yog cov khoom lag luam ntawm Qeb C, thaum theem ntawm rhododendron nyob rau qee qhov chaw siab dua tus qauv ntawm Qeb C.
Nws tau hais tias theem ntawm cov xov tooj cua tuaj yeem paub qhov txawv ntawm cov xim pob zeb. Qhov tseeb, raws li kev ntsuam xyuas ntawm cov tuam tsev hauv lub tebchaws, cov xim tsis tuaj yeem siv los ua lub hauv paus rau kev txiav txim siab nws cov xov tooj cua. Piv txwv li, cov xov tooj cua ntawm pob zeb liab txawv ntawm qhov siab mus rau qis. Rhododendron liab, South African liab, Indian liab, thiab lwm yam yog tus siab. Qee qhov yog Class B thiab C, thaum muaj ntau lub pob zeb liab, xws li Anxi liab thiab Maple nplooj liab, yog Class A cov khoom. Nyob rau hauv luv luv, lub radioactivity ntawm cov ntaub ntawv pob zeb yuav tsum tau nyob rau hauv cov ntaub ntawv soj ntsuam los ntawm cov units.