Day Pass 当日通行证
One-day pass which enables a visitor to enter the IBC .This pass is used when broadcasters invite those who have Accreditation but not accessible to the IBC(such as athletes or press)or those who does not have Accreditation at all.Day Pass for the Venues does not exist.
为没有进入IBC证件的来访者（如运动员和媒体）提供的当日通行证。但场馆不提供当日通行证。

Distribution Network 信号分配网络
Method by which unilateral signals are sent from the IBC to viewers around the world .Examples:fibre optics ,microwave, satellite or terrestral transmission.
用于将信号由IBC传送到全世界的方式，如光纤，微波发射，卫星和地面传送。

Downlink 下行卫星信号
The segment of a satellite transmission from the satellite to an earth station or receiving antenna(dish).
卫星向地面卫星接收机站或天线传输的信号。

Drop-off point(ENG Drop-off)ENG 下车点
A stopping point of the vehicles with ENG camera crew with heavy equipment. To make their loading/unloading easier and quicker,the vehicles with “Drop Off Pass”permit(See Parking Passes)can reach a point closer to the venues than the usual media bus stop.
ENG摄像机通常很重，为了便于装卸设置了“短暂停车点”，可以比其它媒体巴士更接近场馆上下车。

Dry Pairs预设线路接口
An unterminated pair of wires for which the customer must provide their own equipment and battery.
一组没有终端的电线，在该接口上用户必须自备设备和电池才能使用。

ENG 单机
Electronic News Gathering .Portable,lightweight cameras ,VTRs,lighting and sound equipment used for production..
电视制作所使用的便携摄像机，录像机，灯光和音响等一组设备。

ENG Camera Position 单机拍摄机位
An unequipped specified bookable location near the competition area within the venue where an ENG camera may operate.
位于竞赛场地附近的通过预订可放置ENG摄像机的位置。

Feed 视音频信号
The video or audio signal being sent
视频或音频信号。

Fibre Optics 光纤
Light transmission through optical fibres for communication and signalling.Fibre Optic(F/O)transmission is immune to most electromagnetic interference and common mode noise(hum).
利用光导技术来传送信号的光缆。用光纤传输可免受电磁场和普通噪音的干扰。

Field Camera 场外摄像机  场地
Camera used outside the studio environment ?Ccan be fixed or portable.
场外摄像机可分固定式和便携式两种。

Fix or Fixed Camera 定位摄像机
A stationary camera.
固定在一个位置上、不可随意移动的摄像机。

Footprint 占用位置
An area designated to contain a piece of technical equipment,be a camera ,OB van,Mixed Zone etc,to include any space required for its operational personnel.
用于放置技术设备的位置，如摄像机、转播车、混合区的位置等。

4-Wire 四频线
A telecom circuit composed of two pairs of wires or channels that can be used for coord circuits or commentary circuits.When used for commentary,one circuit (or channel)may have greater audio bandwidth than the other.
一条包含两组电线或频道的线路，是协调通话和评论声传送的线路。在用于评论时，一条线路的的音频带宽大于另一条线路。