positive lap正余面positiveadj.积极的；肯定的；明确的；正面的；正数的；阳性的n.正面；正数；正片；[语]原级positive polynomials正多项式positive square root正平方根positive photoresist正性胶,正性光致抗蚀剂positive ion density阳离子密度positive inferential正向推理positive coexistence[法] 积极共处positive after image正余象,正残象positive confinement正限制,绝对密封Positive Progression正数序列positive subdefinite次正定