In order to make irrigation convenient, we have built an open ditch.
为了方便农田灌溉，我们修了条明渠。
The measuring principle of ultrasonic transducer in open ditch flowmeter is described briefly.
简单叙述了超声传感器用于明渠流量计的测量原理。
Based on hydraulics open ditch uniform flow theory, this paper builds up the formula to calculate the velocity gaging section water level current.
从水力学明渠均匀流理论出发，建立了计算测流断面水位和流量的公式。
Analysis the open ditch and a single material in different forms of isolation barrier effect, and then summed up the vibration-isolation behavior of each material.
分析明沟和不同单一材料屏障形式的隔振效果，总结了每一种材料的隔振行为。
For open spread foundation, the pit is excavated by excavators for earth work with manpower to trim the side slope and build the ditch on top of base pit.
明挖扩大基础基坑开挖时，土方采用挖掘机开挖，并由人工配合进行边坡修理、基坑顶面排水沟的修建等辅助工作。
For open spread foundation, the pit is excavated by excavators for earth work with manpower to trim the side slope and build the ditch on top of base pit.
明挖扩大基础基坑开挖时，土方采用挖掘机开挖，并由人工配合进行边坡修理、基坑顶面排水沟的修建等辅助工作。
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