Ten thousand desperate fighting men, with their backs to the sea, held the final perimeter at buna . 一万名殊死抵抗的士兵，背海作战，在布纳守住了最后一道防线。
2.
Nitrile rubber buna n 丁晴橡胶
3.
Buna - n rubber 丁晴橡胶
4.
G . przewalskii migrates to rivers for reproduction from may to august , and the main reproduction sites are the three rivers of shaliu river , buna river and heima river 青海湖裸鲤在5 8月洄游到河流中繁殖，沙柳河、布哈河和黑马河3条河流为其主要产卵场。
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