Indicators on line网页版下�?You Should Know
Indicators on line网页版下�?You Should Know
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If the line is below maintenance, an injury may perhaps manifest as being the catenary is quickly energized. Whether or not the catenary is effectively grounded to guard the personnel, the arc created over the pantograph can injury the pantograph, the catenary insulator or each.
a : a study course of habits or pondering Particularly : an official or general public situation the get together line
Command-line interpreters make it possible for customers to challenge various instructions in a very productive (and infrequently terse) way. This demands the consumer to know the names in the instructions and their parameters, along with the syntax of your language which is interpreted.
The zigzagging in the overhead line isn't required for trolley poles. For tramways, a Get hold of wire without having a messenger wire is used.
a : a class of perform, motion, or imagined Primarily : an Formal or public situation the social gathering line
It might be complicated for any new consumer to be informed about all of the commands and possibilities readily available, compared Using the icons and drop-down menus of a graphical consumer interface, devoid of reference to manuals.
For instance, Should the CLI had two modes called interface and technique, the user could use the command interface to enter the interface manner. At this point, instructions in the process mode will not be accessible until eventually the user exits the interface method and enters the method manner.
The waves must journey speedier compared to the practice to stay away from making standing waves, which could crack the wire. Tensioning the line would make waves travel speedier, and also lowers sag from gravity.
A handful of representative samples of command-line selections, all relating to listing documents inside of a directory, For example some conventions: Operating technique
Lines may perhaps sag all through incredibly hot climate and if a pantograph receives entangled, this may lead to a dewirement. Equally, in really cold temperature They might contract and snap.
sixteen, "Instead of to boast in A further mans line of things made prepared to our hand," in which line translates Greek kanon which almost certainly meant "boundary, limit;" the phrase "in An additional guy's line" becoming parenthetical.
On curves, the "straight" wire concerning the supports results in the Call point to cross over the surface of the pantograph as the coach LINE网页版 travels within the curve. The motion with the Get hold of wire over the head on the pantograph is called the "sweep".
Innovative CLIs will validate, interpret and parameter-expand the command line ahead of executing the required command, and optionally capture or redirect its output.
In DOS' COMMAND.COM As well as in Windows NT's cmd.exe people can modify the prompt by issuing a PROMPT command or by immediately changing the worth from the corresponding %PROMPT% ecosystem variable. The default of Latest systems, the C:> type is obtained, By way of example, with PROMPT $P$G.