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将一支21×200的试管用紫铜片和螺栓竖着固定在灭菌箱的一角。在灭菌箱上适当的地方打一小洞,再从箱外通过小洞向试管内引入一根塑料软管作注入甲醛之用,小洞口要封堵密实,塑料管口要备一橡皮塞。电激板用两截外径8毫米、壁厚0.5毫米,长27毫米紫铜管(汽车废旧输油管)锤扁而成。电源线夹在铜管内。电激板下端适当锉圆以同试管底相适应。用绝缘层(可用压力饭锅皮
A 21 × 200 test tube with copper plates and bolts vertically fixed in the corner of the sterilizer. Put a small hole in the appropriate place on the sterilizing box, then introduce a plastic hose from the outside of the box to the test tube to inject the formaldehyde. The small hole should be sealed densely, the plastic nozzle should be equipped with a rubber plug . Electro-plate with two outer diameter of 8 mm, wall thickness of 0.5 mm, 27 mm long copper tube (car waste pipe) Hammer flat. Power cord clip in the brass. Plates at the bottom of the electroplated plate to suit the bottom of the test tube. With insulation (available pressure rice cooker skin