threshold n. 1.門檻;入口,門口。 2.【心理學(xué)】閾限。 3.界限,限度。 4.【物理學(xué)】臨界值,閾。 5.入門,開始,開端。 Seniors of the threshold of the diplomatic career are expected to take this course. 希望即將從事外交工作的四年級(jí)生選修本課程。 at the threshold of 在…的開始,就要開始的時(shí)候。 cross sb.'s threshold 走進(jìn)某人家里。 cross the threshold 跨進(jìn)門內(nèi)。 on the threshold 在門口。 on the threshold of 在…的開頭,就要…。
ratio n. (pl. ratios) 1.比,比率,比值;比例;系數(shù)。 2.【經(jīng)濟(jì)學(xué)】復(fù)本位制中金銀的法定比價(jià)。 the ratio 3:2 (讀作 the ratio of three to two )3對(duì)2之比。 arithmetical ratio 公差,算術(shù)比。 direct ratio 正比。 inverse [reciprocal] ratio反比。 current ratio 電流比,電流變換系數(shù)。 nutritive ratio 營(yíng)養(yǎng)率。 vt. 1.用比例方式表達(dá);求出…的比值;使…成比例。 2.將(相片)按比例放大或縮小。
As a result, the concept of optimum signal threshold ratio was proposed to improve the ranging accuracy of the lidar and its computational formula was also presented in this paper 通過改變接收信號(hào)強(qiáng)度,對(duì)不同信噪比、不同信號(hào)門限比條件下大量測(cè)距實(shí)驗(yàn)結(jié)果進(jìn)行了分析,驗(yàn)證了最佳信號(hào)門限比的存在。
Further more, the existence of the optimum signal threshold ratio was verified through experiments under different signal threshold ratio and the experiments showed that the optimum signal threshold ratio of our lidar was about 1.8 在一定的實(shí)驗(yàn)條件下,最佳信號(hào)門限比的取值在1.8附近,實(shí)驗(yàn)結(jié)果與理論計(jì)算吻合良好。
Further more, the existence of the optimum signal threshold ratio was verified through experiments under different signal threshold ratio and the experiments showed that the optimum signal threshold ratio of our lidar was about 1.8 在一定的實(shí)驗(yàn)條件下,最佳信號(hào)門限比的取值在1.8附近,實(shí)驗(yàn)結(jié)果與理論計(jì)算吻合良好。
Further more, the existence of the optimum signal threshold ratio was verified through experiments under different signal threshold ratio and the experiments showed that the optimum signal threshold ratio of our lidar was about 1.8 在一定的實(shí)驗(yàn)條件下,最佳信號(hào)門限比的取值在1.8附近,實(shí)驗(yàn)結(jié)果與理論計(jì)算吻合良好。