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Heat a cast-iron or non-stick pan. add oil. you can rub the pan with oiled paper towel. Pour two to three tablespoons of batter onto the pan. You can use the back of the spoon to spread the batter. Let it cook until the surface has bubbles and a few bursts. ...
摘要: An apparatus is disclosed for perforating, testing and resealing casing in an earth formation borehole. The apparatus is moveable through the casing. The apparatus can also be mounted on a wireline, on tubing or on both. A perforating device is mounted in the apparatus for producing a...