2) T-hour unit hydrograph
时段单位线
1.
Traditional methods of deducing the T-hour unit hydrograph,such as the least-square method,are prone to create zigzagged oscillations of the resulting hydrographs,and the surface runoff depth is hardly equal to the net rainfall.
时段单位线被广泛应用于模拟流域中的地面径流过程。
3) single-track lines
单线区段
1.
The first-distribution of train on single-track lines is a key problem in the optimization of the train graphs.
单线区段列车运行图初始布点是列车运行图优化的一个关键问题。
2.
An optimizing programming model used to produce the goods train outgoing-time when using the computer to make train working graph on single-track lines is set up ,with its solution put forward.
对于研究利用计算机优化与编制单线区段货物列车运行图，本文构造了采用逐区间递推铺画方法时生成货物列车始发与终到时刻的优化模型，并通过分析，提出了模型的解法。
4) working-unit-supplying
"单位内"手段
1.
Employees in cities of China acquired houses by means of working-unit-supplying before Housing Reforming.
住房改革前后,中国城市单位不同阶层的职工在获取住房利益的手段上存在较大差异,这种差异显示出较强的社会转型意义:住房改革以前,城市单位职工主要运用“单位内”手段获得住房。
5) non-working-unit-supplying-means
"单位外"手段
6) Block Control Unit (BCU)
控制段单位
补充资料：比例线段
[编辑] 比例线段
[解释]
在同一单位下，四条线段长度为a、b、c、d，其关系为a:b=c:d，那么，这四条线段叫做成比例线段或简称比例线段。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条