物理上的密度
同一個比值換成科學上的量:分母從面積變成體積,分子從人數變成質量。
mass per volume · noun · C1
In science, how heavy something is for its size — its mass compared to the space it takes up.
密度
Picture a fixed box and ask how much has been into it. Not how big, not how many — how much per box. That ratio is the word, and it works the same whether the box holds people on a map or matter in a lump of metal.
From the picture
物理上的密度
同一個比值換成科學上的量:分母從面積變成體積,分子從人數變成質量。
mass per volume · noun · C1
In science, how heavy something is for its size — its mass compared to the space it takes up.
密度
how closely packed · noun · C1
How much of an area is filled with people or things — how closely packed they are.
密度
以下是外部詞典記錄的用法,原文照列,我們還沒有寫成教學內容。上面的說明才是我們自己寫的;有些用法可能上面已經講過了。
densitynoun/ˈdɛn.sɪ.ti/
natural-sciencesphysical-sciencesphysicsThe amount of a certain phenomenon (such as stuff, things, energy, or otherwise) in a given area (surface area) or volume (amount of space).
The amount of a certain phenomenon (such as stuff, things, energy, or otherwise) in a given area (surface area) or volume (amount of space).
mathematicssciencesstatisticsThe probability that an outcome will fall into a given range, per unit of that range; the relative likelihood of possible values of a continuous random variable.
Stupidity.
資料來源:英文維基詞典 English Wiktionary(CC BY-SA 4.0)。 原文照列,未經改寫。