负加速negative acceleration
彩色照像负片color negative film
负的应税利润negative taxable profits【税收】
间歇性正负压换气intermittent positive negative pressure breathin
负压negative pressure
负复曲折negative birefring-ence
负阶乘多项式分布negative factorial multinomial distribution【统计】
彩红外负片colo(u)r infrared negative film【感光】