防冻水尺(镫口水文分站)过去有用羊皮套在水尺上防冻的办法,今年我们又有一个办法,经使用效果很好。方法是:用一蔴袋(布包亦可)内装麦草,将口缝住,中间挖一圆孔,水尺套在圆孔里面。同时在水尺四周用砖块垒起一、二公寸高的小墙草包伏在小墙上,可保持一定温度不冻冰水尺也不会拔起来。缺点是看水位要把草包抬起来手续麻烦不小心又易动摇水尺。 Antifreeze water feet (Su mouth Hydrological Substation) In the past useful sheepskin sets of antifreeze on the water meter approach, this year we have another way, by the use of good results. Method is: with a sack (cloth can also) built straw, will sew the mouth, the middle dig a round hole, water ruler set inside the round hole. At the same time in the water around the ruler with a brick up one or two inches tall small wall grass package in the small wall, you can maintain a certain temperature is not frozen ice ruler will not pull up. Drawback is to look at the water level to lift the bag to handle the inconvenience and easy to shake the water meter.