transmissivity

/ˌtran(t)sməˈsivətē How to pronounce transmissivity (audio) -nzm-/ (ame, mw)

transmissivity — noun

1. the degree to which a material or system lets light, heat, sound, or another kin

1.名詞C2
釋義

the degree to which a material or system lets light, heat, sound, or another kind of energy pass through it

例句

The lab compared the glass panels by measuring each panel's solar transmissivity.

measure transmissivity of a material

Engineers chose the roof film for its high transmissivity, keeping the greenhouse bright in winter.

high transmissivity in a practical design choice

同義詞
  • transmission

    broader; it can mean the act of sending energy or information, not just the property of letting it pass

  • permeability

    often used for liquids or gases moving through a substance rather than for light or radiation

  • transparency

    usually focuses on visible light and how clearly you can see through something

反義詞
  • opacity

    used when a material blocks light instead of letting it pass through

  • insulation

    used when a material is designed to stop heat or electricity from passing through

文法句型

transmissivity of [material/system]

用法筆記

Used mainly in technical writing. It is usually described with words such as high, low, optical, solar, thermal, or hydraulic rather than with everyday adjectives.

常見錯誤

This curtain has a big transmissivity.
This curtain has high transmissivity.
💡This technical noun is usually described by degree words such as 'high' or 'low', not 'big' or 'small'.