non-positive metric  非正度规

positive electrode [= positive pole]  阳[电]极; 正[电]极

positive-negative-positive  正-负-正

sendograph metric endograph metric  承集下方集度量

0-1 symmetric matrix of positive line  〔第3条〕

(BPG)black positive gel  黑色正电胶

(moisture content) of the positive electrode  正极含水量

1-positive definite  酸性磷酸酶（ACP）; 酸性磷酸酶; 碱性磷酸酶; 1-正定

3-terminal positive voltage adjustable regulator  三端正电压可调输出稳压器

5-HT positive immunoreactive cell  5-HT免疫活性细胞

a positive convection term  正对流项

a positive implicative filter  正蕴涵滤子

a positive mentality  住院适当性评估表

absorption curve with positive and negative absorb  正负吸光度吸收曲线

absorption curve with positive and negative absorbance  正负吸光度吸收曲线

accuracy rate of positive result  阳性准确率

Acetylcholinesterase (ACHE) positive neurons  乙酰胆碱酯酶阳性神经元

AChE positive nerves  AChE阳性神经纤维

AChE positive neuron  AChE阳性神经元