A system design for ultrasonic measurement of high-rangeability tube caliber and gas flow is introduced.
英
美
- 摘要研究了一种针对管径和流量变化范围大的气体的超声流量测量系统的设计。
- 今日热词
-
- 深远海浮式风电平台 - deep-sea floating wind power platform
-
- 京雄高速公路 - Beijing-Xiongan expressway
-
- 农业及相关产业增加值 - the added value of agriculture and related industries