您要查找的是不是：
- down line transmission 下行线路传输
- Do they have a matrix or a straight down line? 他们有一个矩阵或直线下跌?
- Inevitably now the two engines, on the up, the other on the down line, must and pass each other. 这两台机车,一台在上线上,一台在下线上,眼看免不了要打个照面,交叉开过啦。
- Internet was developed for text-oriented network applications when line transmission rate was very low while Bit Error Rate (BER) was very high. Internet是在线路传输速率低、误码率高的通信条件下,以文本数据传输为主的应用背景下诞生的网络,历史证明它所提供的“尽力而为”服务完全能够满足文本数据传输服务质量的需要。
- The L.P.G. is made of pay increase up line (alert line), pay increase datum line and pay increase down line. 而工资指导线由工资增长上线（警戒线）、工资增长基准线和工资增长下线组成。
- Realize the connection among trunk line, branch line and user allocation system using dark line transmission which is modern and scientific. It can ensure the application of signal index belong to the CATV's end-user. 适应城市整体建设发展的要求,加强和改进有线电视网络传输系统,运用暗线传输这一先进、科学的信号传输方式,实现有线电视干线、支线和用户分配系统的互连互通,解决“有线电视线路器件老化、容易遭受破坏、影响城市美化”的实际问题,保证有线电视终端用户信号指标,促进城市建设的整体发展。
- In this paper emergent background of HDSL tech- nology is analysed. Two line transmission codes,2B1Q and CAP used in HDSL are discussed in detail . Fi -nally the major feature,advantage and its spplications of HDSI . 本文分析了HDSL技术产生的背景，详细讨论了应用于HDSL中的两种线路传输码：2B1Q和CAP，最后，阐述了HDSL的主要性能、优点及其应用。
- He bore down as he approached the finish line. 接近终点线时，他拼尽全力加速。
- Have a glass of beer to rinse your dinner down. 喝杯啤酒把你吃的晚饭冲下去。
- The machine must break down at this busy hour. 正忙的时候，机器偏偏又坏了。
- line transmission frequency band 线路传输频带
- The old man stared the uninvited guest up and down. 老人把不速之客上下打量了一番。
- line transmission frequency spectrum 线路传输频谱
- He let himself down slowly by means of a tope. 他借助一根绳子慢慢地下来了。
- The deer was peppered with shot all down one side. 那只死鹿的半边身子都被子弹击中。
- The maid did down the walls with a duster. 女佣用掸帚由上而下地刷除四壁上的尘垢。
- Bind down the ropes around the load on the lorry. 把绕在卡车上货物外面的绳子扎紧。
- He was not a man to sit down with affront. 他并不是一个可以忍受当众侮辱的人。
- The Application of CATV Dark Line Transmission in Siping 有线电视暗线传输在四平的实现
- One of the fishing boats sank down astern of us. 有一艘渔船在我们后面沉没了。
