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。

youdao

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。

youdao

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。

youdao

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

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