[das] (


变)氢

烧过

hydrogen burning processes
[der] (


变)氢

烧过

hydrogen burning processes
[die] 【

】质子-质子循环
proton-proton chain, pp-chain, hydrogen burning processes
[die] (


变)氢

烧过

。【

】质子-质子循环
proton-proton chain, pp-chain, hydrogen burning processes
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