Suppose you have a binary system that only one star is visible and the other one is invisible and the one star shows you three clear absorption lines.
假设有一个双星系统,只能看见一颗恒星,另一个看不见,一个恒星,有三条清晰吸收线。
If your system already contains such a file, leave most options as they are, but ensure that the file has the three final lines shown in Listing 2, beginning with [swat].
如果您的系统已经包含这样一个文件，那么请保持大多数选项不变，但要确保文件的最后三行如清单2所示，都是以[swat]开头。
The first three lines of code check out the latest version of sqlalchemy and add it as a package to the Python installation on your local system.
前三行代码检查最新版本的sqlalchemy，并将它作为包添加到您本地系统的Python安装中。
Listing 10 shows the Oops created by the mount to the JFS file system with the problem that was created by the three lines in Listing 8 that were added to the mount code of JFS.
清单10显示了由安装JFS文件系统的mount命令创建的Oops消息，问题是由清单8中添加到JFS安装代码的那三行代码产生的。
The typical trench system in World War I consisted of a series of two, three, four, or more trench lines running parallel to each other and being at least 1 mile (1.6 km) in depth.
第一次世界大战时典型的堑壕体系由2至4条以至更多的一系列壕沟组成，壕沟之间彼此平行，而且纵深可以达到1英里（合1.6公里）。
(You can also embed the three final lines of the script in a loop, dynamically change SOURCE, and back up a series of separate directories on the same system.) Here's how the backup works.
(还可以把脚本的最后三行嵌入一个循环，动态地修改SOURCE，从而备份同一系统上的一系列目录)。
The system must deal with three classes of external entities: the weighing machines on the production lines, the worker's console, and the audit log.
系统必须处理三类外部实体：生产线上的称重机、工人的控制台、审计日志。
This paper describes . and compares three popularly used trouble locating methods of power lines, i. e. , protection action analysis, fault recorder analysis and lightning location system.
介绍了电力系统线路故障点判断常用的保护动作分析、故障录波器分析和雷电定位系统三种方法。
In the design of the system scheme, there are three differences from the former product lines.
在系统方案的设计中，采用了有别于现有生产线的三项技术。
They form a three-parametric, orthogonal net and may be chosen as coordinate lines of a special, curvilinear coordinate system.
它们形成三参数正交网，可以把它们选作特殊曲线坐标系的坐标线。
It is found that the resonance fluorescence in a three-atom system consists of seven lines and each line has its own fine construction.
文中报道了三原子共振荧光由七条谱线组成，每条谱线又有自己的精细结构。
From three views on economics of regulation, jurisprudence and law, and economics, this paper analyzes the necessities of introducing the delay remedy system into Chinas dedicated passenger lines.
本文从规制经济学、法理学和法经济学三个视角，对我国客运专线引入晚点救济机制的必要性进行了初步阐述。
Power system of the "three lines of defense" concept put forward, more enhanced low-frequency-low-voltage load shedding equipment status.
电力系统“三道防线”概念的提出，更增强了低频低压减载设备的地位。
Power system of the "three lines of defense" concept put forward, more enhanced low-frequency-low-voltage load shedding equipment status.
电力系统“三道防线”概念的提出，更增强了低频低压减载设备的地位。
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