A means of approaching, entering, exiting, or making use of; passage.
通道，入口，出口，使用途径接近、进入、出去或使用的方法手段；通道
partial control of access
局部限制信道出入口
He was able to pinpoint the room containing the tunnel entrance.
他可以指出是哪个房间里有通道的入口。
Study on the Humanization Design of Passageway's Space of Station in Urban Rail
城市轨道交通站出入口空间人性化设计研究
Brief Discussion on the Design of the Underground Station Entrance of Rail Transit in Chongqing
重庆轨道交通地下车站出入口建筑设计初探
The Red Cow changes will introduce traffic light-free movements on a number of junctions at the complex interchange.
红牛道路交通变化将在几个复杂出入口引进无交通信号灯运动。
Three-way valve has three entrances and pipes, equivalent to two single-Block valves synthetic one.
三通阀有3个出入口与管道相连，相当于两台单座阀合成一体。
(III) Those who do not guarantee the evacuation passageway and safety exist unblocked.
（三）不能保障疏散通道、安全出口畅通的。
Investigation into Minimum Distance Between Intersection and Passageway of Underground Roads
地下道路地面出入口与交叉口最小间距的研究
Any of the hairs growing at the entrance to the meatus of the external ear.
长在通向外耳耳道入口处的毛发
The tunnel entrance will be concealed within this central room.
通道的入口在中间的房间里面。
They stumbled across the entrance to an underground passage.
他们偶然发现了一个地下通道的入口。
An arch over an entrance or passageway.
拱门，牌楼入口或通道上的拱顶
Analysis of Turning Traffic of the Intersection with Expressway Off-ramp
快速路出口匝道型交叉口转向交通分析
threshold light
入口界灯 -跑道的
Diseases enter by the mouth;misfortunes issue from it
病从口入,祸从口出
Illness comes from food and trouBle from speech.
病从口入，祸从口出。
preventing entry or exit or a course of action.
阻挡入口、出口或行为的。