脈沖波至 的英文怎麼說
中文拼音 [màichōngbōzhì]
脈沖波至
英文
pulse arrival-
We found the " forward stimulated raman scattering " will be excited if the pulse length is greater than plasma wave length. the " forward stimulation raman scattering " decreases the phase velocity and the amplitude of the wake wave which will lead to the reduction of maximum kinetic energy of the electrons trapped
結論是：當脈沖長度接近等離子體波長時，稀薄等離子體將發生「前向受激raman散射」 ，它使脈沖后沿拉長，導致尾流場的相速度變小，以至於被尾流場「捕獲」的電子最大動能大大下降。It is a novel short - distance wireless communication technique, in which data are transferred using non - sinusoidal pulses with very short duration, so it is fit for using in indoor environments which is a typical multipath environment. and it can be coexisted with the existing wireless communication systems at the same frequency band
超寬帶通信系統利用納秒至皮秒級的非正弦波窄脈沖傳輸數據，非常適合作為城區及室內密集多徑環境下的應用，並且能夠與現有的傳統窄帶系統共存。Next, the effects of the electron - beam quality on the characteristics of the vircator are investigated with simulation method. the simulation results show that the front edge of the beam pulse has almost no effect on the saturated microwave output, while good front edges can accelerate the saturation of the virtual cathode oscillation, and beam quality ( except its energy spread ) has almost no effect on microwave frequency, and so on
結果表明：上凸形束脈沖前沿可使虛陰極振蕩器達到飽和振蕩的時間縮短但對微波飽和功率基本無影響；束流脈寬應足夠大，否則虛陰極振蕩器不能達到飽和振蕩（對應本文中的模型，束脈寬應大於16ns ） ；能散度的影響不可忽視，當能散度為5時，束波轉換效率從單能束時的3 . 8降至1 . 5 ；束流質量（除能散度外）對微波頻率基本上沒有影響等。2. the pre - flashover phenomena of alumina insulators in vacuum have been investigated. according to the experimental results, a reversed pre - flashover current was observed repetitively, which often occurs at the tail of pulse voltage close to zero ( sometimes after the applied pulse voltage )
首次發現了大量的、重復性的反向預閃絡現象，即在沖擊電壓波尾附近電壓幅值已經接近零、甚至在沖擊電壓作用完后（已沒有電壓）的情況下仍然存在試樣表面發光現象，同時伴有反向的電流脈沖。Although gravitational waves have not yet been detected directly, their influence on a binary pulsar ( two neutron stars orbiting each other ) has been measured accurately, and was found to be in good agreement with original predictions
盡管引力波至今仍未曾被直接探測到，但它們對脈沖雙星（沿軌道互繞對方運行的兩顆中子星）的影響已經得到精確的測量，而且與最初的預測符合得很好。Gravitational waves are ripples in the fabric of space and time produced by events in our galaxy and throughout universe, such as black hole collisions, shockwaves from the cores of exploding supernovas, and rotating pulsars, neutron stars, and quark stars
引力波是時空結構的波動，由我們銀河系乃至整個宇宙中發生的事件，比如黑洞碰撞、超新星爆發時核心產生的激波以及旋轉的脈沖星、中子星和夸克星所產生。分享友人