武汉冶金建设公司第四工程公司技术员宋志翰,经过几年来的苦心钻研,最近创造了一种适合建筑工地基坑和地槽小量污水排除用的软轴式螺旋水泵。经有关方面的初步鉴定,认为这种水泵很适用,可以节约大量劳动力;它的出现将会大大改变建筑工地排水工作的面貌。宋志翰在修理振动棒时,触机发现软轴是个很好 Mr. Song Zhihan, a technician of Wuhan Metallurgical Construction Company’s No. 4 Engineering Company, after years of painstaking research, has recently created a soft-shaft spiral water pump suitable for excavation of small pits in construction pits and pits. According to the preliminary assessment of the relevant parties, this type of pump is considered to be suitable and can save a lot of labor; its appearance will greatly change the face of the drainage work at the construction site. When Song Zhihan repaired the vibrator, he found that the flexible shaft was a good one.