托福詞彙

rate of change of velocity with time

加速度

relating to sound and its properties

聲學的；與聲音有關的

curved structure transmitting loads to side supports

拱；拱形承重結構

join separate parts to make a complete device

組裝；裝配

exert a force drawing an object closer

吸引；產生吸引力

angle between rotation axis and orbital plane normal

自轉軸傾角；轉軸傾角

line about which a body rotates

軸；自轉軸

shaft supporting a rotating wheel or part

軸；車軸

elongated structural member carrying crosswise loads

梁

region with event horizon from within which light cannot escape

黑洞

inward net force component for curved motion

向心力

structural member carrying mainly axial compression

柱；承重柱

pressing together under inward forces

壓縮；受壓

allow electric current to pass through

導電；傳導電流

material that readily allows electric current

導體

principle that total energy of isolated system is constant

能量守恆

requirement or limit restricting engineering options

設計限制；設計約束條件

wave spreading near obstacles or openings

繞射

measurable extent such as length width or height

尺寸；維度

directed change from initial to final position

位移

reflected sound heard separately after original

回聲

physical property responsible for electrical interactions

電荷

interconnected electrical components forming a current path

電路

rate of electric charge flow

電流

machine converting electrical energy to mechanical motion

電動機；馬達

opposition to electric current related to voltage and current

電阻

phenomena and energy use associated with electric charge

電；電力

physical quantity transferred as work or heat

能量

useful service or output relative to energy input

能源效率；能效