1.
Automatic completion of calls to busy subscriber when the called line becomes free.
在被叫号码空闲时自动完成到达占线用户的呼叫。
2.
(of a telephone line)in use
（指电话线）使用着,占线
3.
Users of sovereign applications are typically intermediates
独占应用的使用者一般都是中间用户
4.
ISDN digital subscriber line ISDN
数字用户线,[港]ISDN数码用户线,[台]ISDN数字用户回路,ISDN数字用户线路
5.
DSL (digital subscriber line)
数字用户线,[港]数码用户线路,[台]数字用户回路
6.
The phone line may be in use. Verify that the phone line is available.
电话可能占线。请验证电话线可用。
7.
Being in use, as a telephone line.
占线的正在使用的，比如电话线
8.
by the end of 2001, household users of natural gas reached 1.689 million in number, accounting for 55 percent of the total of gas users in Beijing.
年末天然气家庭用户达到168.9万户，占全市燃气总户数的55%。
9.
Between first-time users and intermediate users there are many people who use sovereign applications only on occasion.
在首次用户和中间用户之间，有很多人仅仅是偶尔使用独占应用。
10.
International Association of Users of Private Sidings
国际专用线用户协会
11.
I‘ m sorry, the line is busy.= The number is engaged.
对不起，线路在讲话中．：占线(句为接线员用语.
12.
Article4 Those who use a coastline shall pay a coast-line occupation fee according to business lines intended.
第四条使用岸线的，按不同用途收取岸线占用费。
13.
Cellular telephone subscribers,Cable TV subscribers,Daily newspaper circulation
手机用户,有线电视用户,日报发行量
14.
Very-high-bit-rate Digital Subscriber Line
甚高位速数字用户线路(
15.
automatic subscriber line testing equipment
用户线自动测试设备
16.
outdoor plasticinsulated flexible copper wire
户外用铜芯塑料软线
17.
calling party release
主叫用户单方话终拆线
18.
symmetric digital subscriber line
对称数字用户线路(