negative sol阴电(荷)溶胶,负电(性)溶胶negativeadj.否定的；消极的；负面的；负的n.否定；反面意见；底片；[数]负数vt.否定Negative air ion concentration空气负离子浓度negative orientation in values消极价值取向negative electroplating method内镀法negative-pressure protection负压防护negative-going sawtooth wave负向锯齿波negative reserve accommodation负储备调节, 负相对调节negative sequence compensation负序补偿negative pressure ash conveyer负压输灰negative capacitance capacitor负容量电容器negative resistance oscillator负阻振荡器,负阴振荡器