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.
登入就可以看每一支怎麼連回核心畫面。
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，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/
- 1
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).
- In the past two years, NASA’s Kepler Space Telescope has located nearly 3,000 exoplanet candidates ranging from sub-Earth-sized minions to gas giants that dwarf our own Jupiter. Their densities range from that of styrofoam to iron.
- The microcannon was seen moving at about a micron per second, it was about 15 microns long, and the high speed photograph was done in water (density of 1 kg/L, viscosity of about 0.001 pascal seconds).
- 2
The amount of a certain phenomenon (such as stuff, things, energy, or otherwise) in a given area (surface area) or volume (amount of space).
- The number of particles per unit volume of a specified volume can be considered to be the particle density for the specified volume.
- Density, which is genetically linked, deals with the number of strands per square inch on your scalp. Normal density can range from slight to substantial, varying from person to person.
- 3
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.
- 4
Stupidity.
- There's only so much density that pedagogy can penetrate.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。