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}vwh(hun)Ƽ˾
ءַKʡ}(zhn)I(y)@^(q)7̖S
(lin)ϵˣʩ(jng)
֡C13805108525
늡Ԓ051568815655
棺051588663955
]䣺tfkjhb@163.com
W(wng)ַwww.jgje.net
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mô |
2021-7-13 xΔ(sh)[834] |
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mô?
m3ֽMɣ
1O(sh)䱾wY(ji)(gu)ָwijm˿mڮa(chn)
2VָVۉmrVϵs50150Pa
3VۉmӵۉmӵsɃV510
⣬^V߀ӋVmk^VĽֵmwY(ji)(gu)S^VL(fng)ٵ߶ZҸNͬСeIJmͬyijһ_ʽMӋ
ўV渽ķۉmӵ^Vô^VɰʽӋ㣺
P=(A+B)VM
ʽ P^VPaAۉm^Vϵ(sh)BVϵ(sh)V^Vٶm/minMVϵ(sh)
һ^VL(fng)ٞ0.5~3m/minrww50~500Pa֮gǣڿ]wY(ji)(gu)r(yng)ͬr]һă
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