(2/2)ҳ
ϣ«ݱֲ쳤׳ֲڣж̸ëԼ60Ӣ硣ҶԴ׳2-6Ӣ磬뾥һ̸ܱëƣҶҶƬ״ԲλΣԵ߳ݻ״3-8Ӣ磬2-6Ӣ磬Ե״ٷѣߴֳݣɫдֲڵͰɫĶ̸ëҰɫܱɫëҶҶ¡ܱɫ̸ëԶۣȱԲΣ0.3-0.8Ӣ磬0.2-0.4Ӣ磬ʱƽ
ۻ״Դ׳ƺɫijëͶ̸ẹ̈ϸ0.4-1.2Ӣ磬һСİƬƬΣ0.2Ӣң0.1Ӣ磬ܱëͶ̸ëڻɫչʱ1.2Ӣ磬Ƭ״ԲΣСͷﻨ˿0.1Ӣ磬гë
ʵɫԲλ״ԲΣ1.5-2.0Ӣ磬0.6-1Ӣ磬ֲڣлƺɫ̸ë˶ۣͣԹһɹȿӺҺͬʱ
ӺɫɫԼ0.15Ӣ硣
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