on-off signals 中文意思是什麼

on-off signals 解釋
開-關信號
  • on : adv 1 〈接觸、覆蓋〉上去;開(opp off)。 turn on the light [radio water gas] 開電燈[收音機、自來...
  • off : adv 1 〈運動〉向那邊,隔開。 be off 走,去,逃。 I must be off 我得走了。 Where are you off to 你...
  • signals : 信號
  1. It seem d evident to me, that the visits which they thus make to this island, are not very frequent ; for it was above fifteen months before any more of them came on shore there again ; that is to say, i neither saw them, or any footsteps, or signals of them, in all that time ; for as to the rainy seasons, then they are sure not to come abroad, at least not so far ; yet all this while i liv d uncomfortably, by reason of the constant apprehensions i was in of their coming upon me by surprize ; from whence i observe, that the expectation of evil is more bitter than the suffering, especially if there is no room to shake off that expectation, or those apprehensions

    看來,在雨季,他們肯定是不會出門的,至少不會跑到這么遠的地方來。然而,在這一年多中,我卻時刻擔心遭到他們的襲擊,所以日子過得很不舒暢。由此,我悟出一個道理:等待大難臨頭比遭難本身更令人痛苦,尤其是無法逃避這種災難而不得不坐等其降臨,更是無法擺脫這種擔驚受怕的恐懼。
  2. These signals bounce off the objectartificial satellites, the sun, moon and the nearer planetsand are picked up again on their return.

    信號從探測對象人造衛星、太陽、月球和附近的行星反射回來,在其返回過程中被檢拾。
  3. A generic term for a circuit element that can be turned on or off in response to one or more control signals

    一種泛指電路元件的術語,通過響應一個或多個控制信號便可以開通或關斷這種電路元(件) 。
  4. The calibrating technology is mainly divided into two groups : the off - line ones and the on - line ones. the former one is now widely used in the monopulse system to calibrate the amplitude and phase imbalances between the sum and difference channels by injecting test signals

    離線校正的方法是現階段單脈沖雷達系統進行和差通道幅相校正採用的主要方法,它通過注入測試信號的方法來得到對誤差接收通道幅相特性的估計。
  5. Dendritic cells ( dc ) is the most powerful apc, which can markedly increase the antigen - presentation capacity by maximizing the pepitide - mhc complexes on the cell surface and upregulating the co - stimulatory ligands b7 - 1 and b7 - 2, adhesion moleculees such as il - 12 that promote full activation of lymphocytes. full activation of antigen - specific t cells requires two signals - one signal coming via the tcr and the other signal through engagment of co - stimulatary molecules. t cells receiving one signal via their tcr are turned off by mhc ( major histocompatibility complex ), via t cell cd28 binding to b7 on the dc induce tlymphokine and t cell proliferatiion

    T細胞介導的細胞免疫在控制腫瘤生長方面發揮著重要作用, t細胞在發揮抗瘤效應(分泌細胞因子和直接殺傷)之前必須先經過活化,體內專職抗原提呈細胞( apc )細胞並使其活化,樹突狀細胞( dendriticcell , dc )為t細胞的激活提供雙重信號, t細胞藉助tcr識別由dcmhc分子遞交的抗原肽后,通過tcr - cd3復合體傳遞抗原特異性識別信號(第一信號) ,以cd28為主的t細胞表面輔佐分子識別dc表面b7分子,傳遞非特異性協同刺激信號(第二信號) ,在機體抗腫瘤免疫應答中處于核心地位。
  6. First, the traditional speech detection method based on short - time energy is discussed, including its principle and implementation. then it is used for the jumping - off point detection of speech signals transmitted by awgn channel. simulation results are provided

    包括該方法的原理、實現,並將其應用於加性高斯白噪聲通道干擾下的語音信號起點檢測實驗,給出了實驗的統計結果。
  7. Si9979cs can directly transform the motor rotor magnetic poles ’ displacements detected by hall groupware into the on - off signals of the 6 mosfets to realize electronical switch

    Si9979cs可直接將由霍爾組件檢測到的電機轉子磁極位置轉換成為6個mosfet功率管的開關信號,實現電子換向。
  8. Turn signals on a motorcycle usually are not self - canceling, thus some riders, ( especially beginners ) sometimes forget to turn them off after a turn or lane change

    機車上的方向燈通常轉完不會自己會關掉,有些騎士(特別是新手)常常忘記在轉彎或換車道后關掉方向燈。
  9. While we were thus preparing our designs, and had first, by main strength heav d the boat up upon the beach, so high that the tide would not fleet her off at high - water - mark ; and besides, had broke a hole in her bottom, too big to be quickly stopp d, and were sat down musing what we should do ; we heard the ship fire a gun, and saw her make a waft with her antient, as a signal for the boat to come on board ; but no boat stirr d ; and they fir d several times, making other signals for the boat

    首先,我們竭盡全力,把小船推到較高的沙灘上。這樣,即使潮水上漲,也不致把船浮起來何況,我們已在船底鑿了個大洞,短時間內無法把洞補好。正當我們坐在地上,尋思著下一步計劃時,只聽見大船上放了一槍,並且搖動旗幟發出信號,叫小船回去。
  10. Some 40 seconds after wednesday ' s launch the craft disappeared into the clouds but a camera on board showed nie waving as the launch centre said lift off and all signals were " normal "

    火箭升空約40秒之後逐漸消失在雲層之中, 21分鐘后飛船進入了固定軌道,發射中心報告發射工作及各種信號一切「正常」 。
  11. According to the following design theory : the dsp calculates in real time and produces three phases spwm waves to control the on or off of the 6 igbts in ipm respectively. ipm then inverts the commutated single phase direct current ( insulated gate bipolar transistor ) into three phases alternating current. when modulated signals of spwm are changed, the on - off time of switches also changes, so as to the voltage and frequency of output signals

    本文提出了一種基於dsp (數字信號處理器tms320f240 )的通用的三相間接變頻電源系統,利用分段同步調製法和混合查表法,實時計算不同頻率下的采樣周期、電壓幅值、輸出脈寬,產生雙極性spwm波形,經驅動放大後用于ipm ( intelligentpowermodule )中的絕緣柵雙極型晶體管柵級驅動,以控制電源的輸出電壓和頻率,實現變頻電源的智能數字控制。
  12. Cascades are important in signaling pathways, there extracellular signals ( such as hormones or ions ) bind with receptors on the cell membrane, triggering changes in membrane proteins that activate proteins on the cytoplasmic side of the emmbrane, setting off a chain of reactions

    在信號傳導通路上級聯反應起著重要的作用,細胞外的信號(激素,離子等)和細胞膜上的受體結合,引起膜蛋白的變構,進而和細胞膜上靠近細胞質的蛋白結合,引發一系列的反應。
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