螺纹导程
- 网络thread lead;screw lead
螺纹导程-
试验同时表明：螺纹导程降低，泵关死扬程升高，流量降低，性能曲线变陡；
The experimental results also show that , with the thread lead decrease , the pump flow rate decrease whereas its turn off head increase . Consequently , the pump performance curves fall sharply .
-
加大卧式车床可加工螺纹的导程和拓宽导程范围，是提高机床性能的有效手段之一。
One of the efficient means to improve the performance of the horizontal lathe is to increase the lead of the thread it can machine and widen the lead range .