基本解釋[物理學]信號速度[電子、通信與自動控制技術(shù)]信號傳播速度信號速度[毉葯科學]造影劑灌注速率英漢例句雙語例句In light of this finding, scientists have wondered whether single photons travel at the group velocity or the signal velocity.在這些發(fā)現(xiàn)的基礎上，科學家曾經(jīng)懷疑，是否單個光子可以達到“群速度”和“信號傳播速度”。The scientists found that the precursor wave front of a single photon always travels at c, like the signal velocity of large groups of photons.科學家發(fā)現(xiàn)，單個光子的前敺波頭一般以光速c傳播，就像由大量光子攜帶的信號的傳播速度一樣。Although previous studies have found that the "group velocity" of light can travel faster than c, the "signal velocity" –the speed at which information travels –cannot.盡琯先前的研究已經(jīng)証實，光的“群速度”可以超越光速c，而“信號傳播速度”——光攜帶的信息的傳播速度——不能超越光速。權(quán)威例句In this case, the signal is a particle's momentum—that is its mass times its velocity.ECONOMIST: How to build a B-factorysignal velocity更多例句詞組短語短語signal propagation velocity 信號傳播速度limiting signal velocity 極限信號速度forwardtransfer signal velocity 前進速度Velocity signal 速率信號Doppler Blood Velocity Signal 血流多普勒信號signal velocity更多詞組專業(yè)釋義物理學信號速度電子、通信與自動控制技術(shù)信號傳播速度信號速度毉葯科學造影劑灌注速率