ƽմĤ^VMͨ֞ͨմĤ^VMͶͨմĤ^VMڂy(tng)մɲϻA(ch)ϰl(f)չһNܸM(jn)մ^Vɴ(50-150m)ߏ(qing)ȵĶմ֧w(x)մɱVĤ(0.1-10m)M
@NĤϽY(ji)(gu)մ^Vϵ^Vֽ^VϵwQ˂y(tng)^Vϵϴy}^Vȸ^VСϴܺõȃ(yu)c(din)մĤ^VԪɏV(yng)ڸNwҺwĸ߾^V
ƽմĤ^VMO(sh)Ӌ(j)жNʽ(j)ɷNĤ(gu)O(sh)Ӌ(j)ƽ嘋(gu)ͺʽ(gu)͡ʽ;ʽĤMʹƽĤܠë(x)ܺпwSģMʹùʽĤ(du)ڹI(y)ʹõĤMĤbܶÿɏĔ(sh)ٵǧƽף(j)ͬa(chn)ʹÎׂ(g)(sh)ق(g)ĤM