main drainage ditch

main drainage ditch 基本解释

网络  总排水沟

医学

重点词汇

• mainn. 主要部分, 干线, 体力, 力量, 主群组 a. 主要的, 重要的, 全力的 [计] 主群组
• ditchn. 沟渠 vt. 在...开沟 vi. 开沟
• drainagen. 排水 [医] 引流[法], 导液[法], 排水[设备]

main drainage ditch 双语例句

1. 1、 The irrigation and drainage system was based on the natural ditches as main drainage ditch, received the seeper of farming ditches or trenches, which were designed vertical to the counter line, making sure of a smoothly drainage.
   排灌系统则是以天然河沟作为骨干排水沟道，承接农沟（渠）的积水，农沟（渠）垂直于等高线布置，保证排水通畅。