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      无码国产精品一区二区免费式影视_亚洲熟妇无码乱子AV电影_亚洲av永久无码精品三区在线_精品无码一区二区三区亚洲桃色_亚洲中文无码av永久
      LQX-RZ型暗筒日照計
      型號：LQX-RZ　品牌：利誠
      • 產品概述：
        暗筒式日照計又稱喬唐式日照計，由金屬圓筒(底端密閉，筒口帶蓋，兩側各有一進光小孔，筒內附有壓紙夾)、隔光板、緯度盤和支架底座等構成。
        它是利用太陽光通過儀器上的小孔射入筒內，使涂有感光劑的日照紙上留下感光跡線，來計算日照時數。

      • 日照記錄時間
        5:00～19:00
        緯度使用范圍
        0°～ 60°
        記錄時間誤差
        ±3min
        外形尺寸
        175×175×l30（mm）
        重    量
        3kg

      • → 輸入名稱(點擊下載)
      
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