单词	燈光暗澹
释义	同DULL
随便看	constant temperature surface constant tension winch constant term constant-- thermal-diffusion constant thickness line constant tilt constant-- time-delay constant time lag constant time relay constant time system constant torque constant torque characteristic test constant torque drive constant-torque drive constant torque motor constant-torque range constant traffic constant, transmission constant, type constant--urea constant value command constant value control constant-value control constant vector constant velocity