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。

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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。

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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。

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But the most fearsome of these fences isn't "The Chair, " a 5-foot-3 high hedge fronted by an open ditch, the sharp bend of the "Canal Turn, " or even the dreaded "Becher's Brook, " with its steep 6-foot-5 drop.

WSJ: Why They Fear Aintree's First

Just before Parkside Avenue, the train emerged into modified sunlight, running in a ditch that was open to the sky.

NEWYORKER: Brooklyn Circle

Pena Nieto left the door open for the PRI to ditch anti-union measures in Calderon's bill, mindful they were divisive.

MSN: Analysis: Mexican labor reform signals battles ahead for Pena Nieto - World news - Americas | NBC News