8号彩票上光大gd567

  • 大棚镀锌管安装时的保护措施

    发布日期:2017-05-24

    菜农都知道,大棚镀锌管在夏季受到太阳照射时,升温速度非常快,尤其是在中午时,钢管表面温度高得烫手,而这样高的温度,很容易导致靠近大棚管的棚膜产生皱缩,甚至烫破。针对这种情况的出现,菜农可以按照以下方法应对。

    CAINONGZAIANZHUANGPENGMODEQIANYITIAN,KEYISHIYONGFEIJIUDEBUTIAOHUOZHEWUFANGBUBUTIAO,JIANGQICHANRAOZAIDAPENGNEISUOYOUDEGANGGUANZHIJIASHANG,JIANGGANGGUANYUPENGMOGEKAI,BIMIANPENGMOYUGANGGUANJIECHU。TONGSHISHIYONGNILONGSHENGJIANGBUTIAOHUOWUFANGBUKUNBANGGUDING,BIMIANBUTIAOTUOLUO。ZHEIYANGZAIANZHUANGPENGMOHOU,YINWEIGANGGUANYOUBUTIAOZHEDANG,BUHUISHOUDAOTAIYANGZHISHEERDAOZHIWENDUGUOGAO,BIMIANLEPENGMOCUNZAIBEITANGERQIZHOUHUOPOLIEDEWEIXIAN。

    SHIYONGJIANGWENFANGFAYAODEDANG CAIYONGPONIJIANG、PENSAJIANGWENJI、SHIYONGZHEYANGWANGDENG,SHICAINONGZAIXIAJIJICHUQIUSHICHANGYONGDEJIANGDIPENGWENDEFANGFA。ZHEIXIEFANGFAZAISHENQIUSHIXUYAO   HUANDEJIUPENGMOSHANGKEYISHIYONG,DANSHIZAICAINONGGANGGANGANZHUANGDEPENGMOSHANGSHIYONGSHI,JIUBUTAIHESHILE。

    8号彩票上光大gd567XIANGCAINONGCHANGYONGDEPONIJIANGDEFANGFA,ZHEIZHONGFANGFAWUCHENGBEN,JIANDANYIXING,SHIYONGZHEIZHONGFANGFAWEIDAPENGJIANGWENDECAINONGHENDUO,DANSHIZHEIZHONGFANGFAZAIXINANZHUANGPENGMODEDAPENGSHANGJIUBUSHIYONG。YINWEICAINONGSHIYONGPONIJIANGJIANGWENDEFANGFASUIHAO,DANSHIRONGYIDAOZHIPENGMODETOUGUANGLVJIANGDI,YINGXIANGPENGMODETOUGUANGLV,DAOZHIDONGJISHIPENGNEISHUCAIYINJIANGUANGBUZUERSHENGZHANGBULIANG。SUOYICAINONGBUNENGXIANGPENGMOSHANGPONIJIANG。

    DUIYUJIANGWENJI,CAINONGYEBUYIZAIXINMOSHANGSHIYONG。JIANGWENJISUIRANBUHUIYINGXIANGPENGMODETOUGUANGXING,DANSHIQUEHUIYINGXIANGPENGMODEBAOWENXING。CAINONGZAISHIYONGJIANGWENJIHOU,JIANGWENJIHUIZHANZAIPENGMOSHANG,BURONGYI   ,ZAIDONGJISHI,JIUHUIDAOZHIPENGMODEBAOWENXINGXIAJIANG,YEBULIYUPENGNEISHUCAIDESHENGZHANG。