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ڣ2017-11-03 :58 α༭:
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ժҪһɰ߳˸ϻɸɰֻ豸⣬ҲܻҪơϸơϴɰôúͼ۸Щйأľ˽ܡ
żҶԺɳȵǿԼٹ··߲㽨ˮӽ衢վȶɰʯijɰѾΪձͶĿͻѯ˾йɰߵʱҪ˽㣺ɰõʯͷӲȡʯϵijߴߵĹģǰعϵߵãֱӰߵļ۸ɱΪʲôô˵أ
![ʯҺʯʯ](/uploads/allimg/171103/2_171103155820_1.jpg)
1.ɰõʯͷӲ
ӲʵĺʯʯʯңҪʽɰΪߵɰ豸ҪʺϸӲȵ飬нϲԭ˶Բĥ𣻲ˣĻɰƷȾȡκáеӲȵʯʯʯʯԲʽɰҪڵλʱĵĵܱȳʽɰ30%ȴԽ250mmµһɰҪȣϽǻȺתϾȷֲĴͷķö飬Ʒ㽨ҵߵҪ
![ɰֳ](/uploads/allimg/171103/2_171103160532_1.jpg)
2.ʯϵijߴ
ʽɰĽϳߴͨ50mm£ʽɰ250mm¡ɰʯϳߴҪķΧڣϻֱɰӹΪƷɰ෴ʯϳߴΧҪһλ̣ԴʯͷдȴﵽҪƤͻɰڽɰ
3.ߵĹģ
ͻͶɰʱȽϹעԤ㷽⡣ļ۸ҪģйأСɰ˵ģҪø߲ɰӦ豸д̣Щⲻ˸ʽͶ룬Ȼ˹ģ⣬ߵļ۸ҲҼгȴҪصӰ죬һ˵Ͷʳɱʮ֮䲻ȡ
Ҫ⣬ͻɰߵĻ̶ȼƷɰྻҪϸߣҪӦijϴɰ豸ӶӰ쵽Ŀܵļ۸Ԥ㡣ΪѯɰĿͻƷӭϵ