民航機場pier和jetway有區別嗎?

The
landside begins at the area of an airport where the passenger loading device
(typically a 「jetway」) at a gate connects with the passenger
terminal or concourse, and proceeds
through the passenger building, cargo facilities, and the ground access system.
這段里的描述說jetway是屬於landside的，在系統圖中，piers也屬於landside，但是，過了安檢去往登機口後就已經在airs了。求解。

airside [????sa?d]

n

(Engineering / Aeronautics) the part of an airport nearest the aircraft, the boundary of which is the security check, customs, passport control, etc. Compare landside [1]

Collins English Dictionary – Complete and Unabridged

landside [?l?nd?sa?d]

n

1. (Engineering / Aeronautics) the part of an airport farthest from the aircraft, the boundary of which is the security check, customs, passport control, etc. Compare airside

Wikipedia的解釋：

Airport structures[edit]

Airports are divided into landside and airside areas. Landside areas include parking lots, public transportationtrain stations and access roads. Airside areas include all areas accessible to aircraft, including runways, taxiways and ramps. Access from landside areas to airside areas is tightly controlled at most airports. Passengers on commercial flights access airside areas through terminals, where they can purchase tickets, clear security check, or claim luggage and board aircraft through gates. The waiting areas which provide passenger access to aircraft are typically called concourses, although this term is often used interchangeably with terminal.

你問題中的句子對airside和landside的定義似乎不大一樣，不知道有沒有原文和來源提供？

關於pier和jetway，關係是這樣的：