| 中文 |
英文 |
缩写 |
| 恶化信号 |
degraded signal |
|
| 恶意呼叫 |
malicious call |
|
| 恶意呼叫定位信号/恶意呼叫识别信号 |
Malicious Call Identification signal |
MCI |
| 恶意呼叫追踪 |
MALicious Call Tracing |
MALCT |
| 耳机 |
earphone |
|
| 二/四线转换电路 |
hybrid circuit (2-wire to 4-wire conversion) |
|
| 二叉树 |
binary tree |
|
| 二次拨号音 |
secondary dial tone |
|
| 二次电源 |
secondary power supply |
|
| 二次群 |
secondary group |
|
| 二次群光传输 |
optical transmission of secondary group signal |
|
| 二次失效 |
secondary failure |
|
| 二次数字复用器 |
secondary digital multiplexer |
|
| 二分查找 |
dichotomizing search |
|
| 二级保护 |
secondary protection |
|
| 二级时钟 |
stratum 2 clock |
|
| 二进制 |
binary system |
|
| 二进制编码的十进制数加法/BCD数加法 |
addition of BCD number |
|
| 二进制数加法 |
addition of binary number |
|
| 二进制数字 |
binary digit |
bit |
| 二进制同步通信 |
Binary Synchronous Communication |
BSC |
| 二进制同步协议 |
BinarY SYNChronous protocol |
BYSYNC |
| 二进制文件传输 |
Binary File Transfer |
BFT |
| 二进制循环（反射）码/格雷码 |
cyclic binary code |
|
| 二进制指数退让算法 |
binary exponential backoff |
|
| 二类传真机（频带压缩/3 min传送一页A4文件） |
group 2 facsimile apparatus |
G2 |
| 二-十进制/二进制编码十进制数 |
Binary-Coded Decimal |
BCD |
| 二维 |
2D=two dimensional |
|
| 二纤复用段共享保护环 |
two-fiber MS shared protection ring |
|
| 二纤通道保护环 |
two-fiber path protection ring |
|
| 二纤自愈环 |
two-fiber self-healing ring |
|
| 二线/四线转换器 |
2w/4w converter |
|
| 二线模拟接口 |
2-wire analogue interface |
|
| 二相相移键控 |
Binary Phase Shift Keying |
BPSK |
| 二义性/多义性/模糊/含糊 |
ambiguity |
|
| 二元的/二态的/二进制的 |
binary |
|
| 发电机组 |
electric generator set |
|
| 发电站 |
power station |
|
| 发端长话局 |
originating toll exchange |
|
| 发端端局 |
originating local exchange |
|
| 发端国际局 |
originating international exchange |
|
| 发端呼叫/去话筛选 |
originating call screening |
|
| 发端局 |
origination exchange |
|
| 发端口 |
transmit port |
|
| 发端业务/发话话务量 |
originating traffic |
|
| 发方 |
originating party |
|
| 发方向 |
transmit direction |
|
| 发光二极管 |
Light Emitting Diode |
LED |
| 发话占用数 |
number of originating seizures |
|
| 发货 |
product shipment/delivery/consignment |
|
| 发码器 |
code sender |
|
| 发起呼叫/始发呼叫 |
originating call |
|
| 发射 |
TransMiT |
XMT |
| 发射功率跟踪环路 |
Transmission Power Track Loop |
TPTL |
| 发射关 |
Transmit Off |
X-Off |
| 发射机/送话器/发送机 |
Transmitter |
TX |
| 发射机眼图屏蔽 |
transmitter eye pattern mask |
|
| 发射基带交换 |
Transmitter Base Band eXchange |
TBBX |
| 发射极化分集 |
transmit polarity diversity |
|
| 发射-接收装置 |
transmit-receive unit |
|
| 发射开 |
Transmit On |
X-On |
| 发收串音 |
go-to-return crosstalk |
|
| 发送光功率比 |
transmitting optical power ratio |
|
| 发送母线 |
Send HighWay |
SHW |
| 发送特殊信号音信号 |
Send-Special-Information tone signal |
SSI |
| 发送信号眼图 |
transmit signal eye pattern |
|
| 发信/收信机 |
TRansmitter & Receiver |
TRX |
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