compression
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compression
The pressing together of matter, especially gases, in order to reduce its volume and increase pressure. This is a fundamental principle in engines and pumps.
Die Kompression des Gasgemischs im Zylinder ist entscheidend für die Leistung des Motors.
The compression of the gas mixture in the cylinder is crucial for the engine's performance.
'Die Kompression' (compression) is the noun corresponding to the verb 'komprimieren' (to compress). The ending '-ion' is typical for feminine nouns that describe a process or result and often come from Latin.
Um die Datei per E-Mail zu senden, musst du sie zuerst komprimieren.
To send the file by email, you have to compress it first.
This word is a technical term in several fields. The context makes the meaning clear: 'Motor' (engine) and 'Zylinder' (cylinder) point to technology, 'Daten' (data) and 'Datei' (file) to computer science, and 'Nerv' (nerve) or 'Wirbelsäule' (spine) to medicine.
Die Kompression der Videodatei dauert einige Minuten.
The compression of the video file takes a few minutes.
In an IT context, people often speak of 'Kompression von Daten' (compression of data) or 'Bildern' (images). A distinction is also made between 'verlustfreier' (lossless) and 'verlustbehafteter' (lossy) compression.
Für Fotos wird oft eine verlustbehaftete Kompression verwendet, um viel Speicherplatz zu sparen.
Lossy compression is often used for photos in order to save a lot of storage space.
pressure / printing
'der Druck' and 'die Kompression' can both have to do with force acting on something. 'Druck' more often refers to the force or the state: pressure acts on a surface. 'Kompression' more often describes the act of pressing together itself, or the result of it, for example when a gas gets a smaller volume and the pressure rises. In medicine, 'Kompression' can also mean pressure on a body part or a nerve pathway. The words can be confusing because compression often creates pressure. Put simply: 'Druck' is the force; 'Kompression' is usually the pressing together.
Selma erklärt im Gespräch, wie Kompression die Luft im Motor zusammenpresst.
In the conversation, Selma explains how compression presses the air together in the engine.
Beim Termin sprechen wir über den Druck in der Leitung.
At the appointment, we will talk about the pressure in the pipe.