The countryside irrigation engineering mainly refers to the village level jurisdiction below the lateralcanal the field project.
农村灌溉工程主要是指乡村一级管辖的斗渠以下田间工程。
2
The method of operation is simple and convenient, and in external magnetic field is added to the end of root canal, to make the fluid flow down to its pointed end the lateralcanal.
其操作方法简便，于牙根端外加磁场控制磁性液体向根管的尖端及其侧支根管流动。
3
This may partially explain the absence of symptoms in our patient due to the position of the loose body in the lateral side of the canal.