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trona ['trəʊnə] n
gen. 二碳酸氢三钠
agric., chem. 天然碱
anim.husb. 粗制钠盐; 粗碳酸钠
eng.geol. 天然苏打; 碳酸钠石
trona: 2 phrases in 1 subject
Technology2

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