常数

a constant (math.)

surname Chang

always / ever / often / frequently / common / general / constant

to count / to count as / to regard as / to enumerate (sb's shortcomings)

number / figure / several / CL:個|个[ge4]

frequently / repeatedly

Avogadro's number (chemistry)

constant of integration (math.)

dielectric constant

(physics) Planck's constant h, approximately 6.626 x 10⁻³⁴ joule.seconds