. 56 60 61- 68 é16 Betulaå¨1928â1933å¹´å -å¹´éæ 液æµå¨å¼å§å (A. B.å·´ç¹é¦¬è«¾å¤«1934) æ 液æµå¨æçæ¥ä¸´ï¼1â 4 ï¼j 16-18æ¥ï¼2â 4æ18â21æ¥ï¼ â 4æ22â24æ¥ï¼4â 4æ25â27æ¥ï¼5â 4æ27â30æ¥ï¼ 6â5)] 1 ä¸3æ¥ï¼7â5jj 4â6æ¥ï¼Sâ5æ7æ¥å以åã æ ä½ä¸ºæ ¹æ®çï¼è¿ç§ååæ¯ä¸è¶ è¿1â2æ¥ã1\ 3.èéè¨ï¼1935) èªä¸ºï¼å¨æ¬§æ´²æ¸©å¸¶æ°ååºåæ¥å¤©æ¤è¢«ç¼è²æ¯è¶ä¸ç·¯åº¦ï¼111å ¬éï¼ ç´æ¨è¿2â3æ¥ãæ¥å-£ç¾è±¡æ¥ä¸´çæ¥ææ¡ç¶åº¦çæ¹ååå°å¾å¤ãä½ è è¦å¾å¾æ¹ä¾¿å°å°å ¨é¨ç¡ç©¶çåºååå为è¿æ¼æ-£æ¹å½¢çå°å¡ï¼å°

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