电信专业英英词典P-1

 

　　P-MAC

　　packet media access controller

　　PAD

　　packet assembler-disassembler

　　PCB

　　printed circuit board

　　PDS

　　premises¹ distribution system

　　Personal Communications

　　Personal communications provides at least one human operator with direct terminal access and real time or near real time interactive² communications with a remote human opera tor or an information system resource. Personal communications can refer to a broad range of services, systems and equipment, e.g., facsimile machines, landline telephones, cellular³ tele phone systems and emerging personal communication system (PCS) adjuncts, and a variety of radio systems including pagers, hand-held remote data entry terminals, and autonomous⁴ citizen-band- like radio systems.

　　PHY

　　physical-layer protocol⁵

　　PMD

　　physical-layer media-dependent

　　Point-of-presence (POP)

　　A POP is a physical location within a LATA that an IXC establishes for the purpose of gaining access to BOC/LEC networks within the LATA using LEC provided access services. An IXC may have more than one POP within a LATA and the POP may support public and private, switched and non switched services.

　　POP

　　point-of-presence

　　POT

　　point of termination

1 premises   

n.建筑物，房屋

参考例句：

• According to the rules,no alcohol can be consumed on the premises.按照规定，场内不准饮酒。
• All repairs are done on the premises and not put out.全部修缮都在家里进行，不用送到外面去做。

2 interactive   

adj.相互作用的，互相影响的，（电脑）交互的

参考例句：

• The psychotherapy is carried out in small interactive groups.这种心理治疗是在互动的小组之间进行的。
• This will make videogames more interactive than ever.这将使电子游戏的互动性更胜以往。

3 cellular   

adj.移动的；细胞的，由细胞组成的

参考例句：

• She has a cellular telephone in her car.她的汽车里有一部无线通讯电话机。
• Many people use cellular materials as sensitive elements in hygrometers.很多人用蜂窝状的材料作为测量温度的传感元件。

4 autonomous   

adj.自治的；独立的

参考例句：

• They proudly declared themselves part of a new autonomous province.他们自豪地宣布成为新自治省的一部分。
• This is a matter that comes within the jurisdiction of the autonomous region.这件事是属于自治区权限以内的事务。

5 protocol   

n.议定书，草约，会谈记录，外交礼节

参考例句：

• We must observe the correct protocol.我们必须遵守应有的礼仪。
• The statesmen signed a protocol.那些政治家签了议定书。