【法】 直接证据, 肯定证据

有确切的证据证明他做了此事。

有确凿的证据证明他做了这件事。

positive reinforcement

positive result

continuous positive airway pressure

intermittent positive pressure ventilation, IPPV

positive attentionseeking

positive definite Hermitian transformation【数】

intermittent positive pressure breathing

new case registration rate of smearpositive pulmonary tuberculosis