ýּܴ谲ȫ

ýּʹòϺʹ跽ͬһּܡ
ˣݺ˼2m1.8mӦƽʵ3050cmʱӦľɨظˡ
ˣݺˮƽ˲1.8m˼40cm
ţĽӦ豧бţıţмÿһţбźͼžӦ¶á
ܰ裺ܸ4mڣܰ϶20cmܸߴ4m̡ܰ
ʩͨӦ1mߵķˣ¼Ӧбݣ׼ʵǽּܸ¡
ʩأһ㲻100kg/m2 ܽϴӦȡӹ̴ʩơ 
