Researching the high performance transporting, metering and dropping system to boost the drop frequency has been a hotspot of farming machine.
研究开发性能良好的输送、分苗、落苗系统，提高投钵频率已成为农业机械领域一个热点问题。
2
Both ways for improving mounting accuracy of metering pump for chemical fibre filature machine are introduced.
主要介绍了两种提高化纤纺丝机计量泵安装精度的方法。
3
Odorization pumps are specially designed diaphragm plunger metering pump, plunger travel of the exercise machine lock, each time to maintain a constant output.