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ʯĵòǵر¶ɽ壬ҲǺ̲ò̲ȡԼֻҪڵƣغӵɼɣҪ¶ɽʯĿɷ˻ܣ漰ԭҪͰʩ֣ԹҲο
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1.ҵ
ھӲʯͷԵ˵ʽɸ͡ˮƽֲ㿪ɣƽȲù30mжھװʯھڷԵƶʱеԵĿȲСڿȵ1/2
2.ұ
ƵҪըҩܡһͿѹȣҵʱҪ辯䣬С500m ʯʯֱòװ͵ԭϲֽ顢ɸּӹ
3.
ڲŵؾ£Ϊʯ˲ˮõɰأͬʱҪܿʡЩɵá
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1.ڲʯ߽ˣʶнڣҹΪֹײˣʵƽ߱ʶ
2.רְԱָͨͨӳɨ࣬ʵòʯ̡еʩԱİ
3.ֳҵԱӦزʯʩĹƶȣȷʹðþߡе豸ȣϽƺϸڡ
4.ʯذװҹʩߣҹʩʱӱƾʾ
ܽĿɷͨڸ¶ʯ©֮ϣͻƶշʱˣƺҹ˾нʱ503000ֵʯͬʱ30ʯɾ飬⣬ܸΪ