常見例句雙語例句Nothing happens until the excitatory stimulus exceeds a certain 'threshold'value.興奮性刺激超過某一臨界值以前毫無反應(yīng)。Objective: To understand the effect of different rates of stimulus on thermal threshold.目的：在定量感覺檢查中，探討不同刺激溫度變化率對(duì)溫度覺閾值的影響。The threshold of the pressure stimulus for the "respiratory excitatory reflex" was higher than that for the depressor reflex.本實(shí)騐証明在消除頸動(dòng)脈躰化學(xué)感受器的影響後，頸動(dòng)脈竇受到擴(kuò)張刺激仍能引起呼吸運(yùn)動(dòng)的反射性興奮反應(yīng)。 返回 threshold stimulus