bunan.
'bju:nə
中文n. 丁钠橡胶（一种人造合成橡胶）\nn. (Buna)人名；(匈)布瑙；(罗)布娜(女名)，布纳
丁钠橡胶（一种人造合成橡胶）
n. (Buna)人名；(匈)布瑙；(罗)布娜(女名)，布纳
词根词源
buna (n.)synthetic rubber made from butadiene, from German Buna, from first elements of butadiene, name of a hydrocarbon (related to butane; the suffix indicates the presence of two double bonds) + Na, indicating sodium (from natrium; see sodium).
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