为什么下水道的盖子是圆的很多人对这个问题比较感兴趣，下面让我们一起来看涓姘撮瀛涓轰涔澶у伴芥锛，希望可以帮助到你。
涓?姘撮??????瀛?涓轰?涔?澶у??伴?芥??????锛?
涓?姘撮??????瀛?????????涓昏????卞?????规?ф???冲??????变???????浠讳??村??戒?浼?姣??惧???????灏?锛???浠ヤ?绠℃??涔??凤?涓?姘撮??????瀛??戒?浼?浠?浜??ｆ??涓??汇?????圭????浠讳?涓?涓?竟?芥??惧????瑰?ｇ??瀵硅?绾?/a>???褰???瀛?绔?璧锋?跺氨?????芥??????涓??汇????浠ヤ负浜??垮???虹?颁?姘撮??????涓??荤?????碉?浜轰滑??涓?姘撮????浜??ｅ????瀛?璁捐?????褰㈢????
涓轰?涔?涓?姘撮??浜?????????锛?
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1??浠???瀛︾??瑙?搴︽?ョ??锛???褰????涓??????圭???????????????????瑰?????挎?瑰舰浜??????????瑰????杩?浜??藉???广??
2?? ??涓轰?姘撮?????ｄ釜?ｆ????????
3????褰㈢??浜?????互?变?涓?汉???????涓哄???互?ㄥ?颁?婊???
4????涓哄??褰㈢??浜???涓????炬??锛??藉?杈?濂界??淇??ゅソ琛?浜哄??杞﹁???瀹??ㄣ??
5????涓哄??褰㈢??姣?涓??＄?村????哥???锛?浜?????????褰㈢??璇?锛???璁轰???釜瑙?搴︾??瀛??戒?浼????颁????汇?? ???跺?褰㈢?舵?讳???涓??″??寰??????跨??锛?渚?濡??╁舰锛??惰?绾垮氨?夸?杈归?匡?濡?????浜????????╁舰锛?灏辨???????戒?瑙?绾跨??瑙?搴︽??涓??汇??
?╁?璧???锛?
浜????ц?界?圭??/p>
1??寮哄害楂?锛??遍??妫??ワ??锋??寰?楂???????????寮??????插?荤??寮哄害锛????ф?с???挎??浣跨?ㄥ??璇ヤ骇??涓?浼??虹?颁???琚???纰????????拌薄锛??藉交搴???缁?????甯?榛?娲???浜???????????
2??澶?瑙?缇?锛??遍??妫??ヤ???琛ㄩ?㈣?辩汗璁捐?绮剧?锛?棰??蹭寒涓藉???锛?缇?????甯??????
3??浣跨?ㄦ?逛究锛?????杞伙?浜у??????浠?涓洪?搁????涓???涔?涓?宸﹀?筹?渚夸?杩?杈???瀹?瑁?????慨锛?澶уぇ??杞讳??冲?ㄥ己搴︺??
4???茬??锛??遍??妫??ヤ????????朵环?硷????堕?茬??锛??规????烽??瑕?骞惰?????瀹?缁???锛?瀹??颁???璐㈢?╅?茬????
5???????у己锛??遍??妫??ヤ?????杩?绉?瀛︾?????广????杩???宸ヨ?恒??瀹??????????澶?浣胯?浜у???藉???50??锝?+300?????涓??甯镐娇?ㄣ??
6?????哥⒈????????????纾ㄣ????杞﹁?纰惧??锛?浣跨?ㄥ??介?裤??
????璧????ユ?锛??惧害?剧?-浜???
涓?姘撮????浜???涓轰?涔???????锛?
涓?姘撮????浜???涓哄??褰㈢??涓昏?????????ㄦ?у??绋冲??с??涓??㈡???浜?????锛?
?讳?锛?涓?姘撮????浜???涓哄??褰㈢??涓昏?????????ㄦ?у??绋冲??с????褰??????互?叉?浜??????ヤ???锛??村ソ?板???ｉ????锛???搴?涓?????浜??ｅ舰?讹?浠ュ???村ソ?伴?叉???杞???
??褰??????互?叉?浜??????ヤ???????褰???????村?姣?杈?澶э???互瑕???浜??ｏ?浠????叉?浜??????ヤ??????告?涔?涓?锛??瑰舰浜?????杈圭?瀹规??琚??′?锛?瀵艰?翠??????ヤ?????
??褰??????互?村ソ?板???ｉ????????褰????????????甯?????锛???互?村ソ?板???ｉ????锛?浠?????灏?浜???????褰㈠???磋???椋??┿??
??褰??????互?村ソ?伴??搴?涓?????浜??ｅ舰?躲???变?浜??ｇ??褰㈢?跺???戒???锛???褰??????互?村ソ?伴??搴?涓?????浜??ｅ舰?讹?浠????村ソ?拌???浜??ｃ??
??褰??????互?村ソ?伴?叉???杞?????褰??????互?村ソ?伴?叉?浜?????杞??浠?????灏?浜???琚???????椋??┿??