LһNLHǹܵaƷеҪaƷґÏVҪϤ˽_ʹкõʹЧҌ҂Ҳк̎ģٿԔU҂ČI(y)֪R،҂֪R
1\LȺҎ(gu)ǹ̶׃ĆЩbҎ(gu)
\LLеһNһҊNڣ@һNLܵĺȺҎ(gu)ǿԸ(j)ʹҪMm{
\LܵİbҎ(gu)Ҫ@ЩǞ飺
(1)LǞˮƽbֱL߅ߴ粻400mmԒôLgܴ4m400mmԒtgܴ3mLǞ鴹ֱbԒgܴ4mңθֱّЃɂ̶c
(2)\L֧ܵxxcȺ̈́ҪϵʽҎ(gu)Ҫt]
(3)A\Lǰb֧ϵôͱ@ɂAǾڳߴcL⏽һ
2EALҎ(gu)ǷԶƣLϵy(tng)ܷȡQʲô
EALҎ(gu)ôǿMжƵԝM㲻ͬҎ(gu)ߴҪLϵy(tng)Ҫ\еԒtLܵİb_͵λt_@һĿ