two-level system

基本解釋

Much better to stick with a two-level system of pass and fail, or (if you will insist on such elitism) one extra level of “pass with distinction” for the top quartile.
最好還是繼續(xù)兩級(jí)方案，即通過和不通過，或者（若堅(jiān)持精英主義）再為頂尖者增加“優(yōu)秀通過”這個(gè)額外的級(jí)別。
It is shown that this approach can not only treat the two-level system within the rotating wave approximation(RWA), but also present an exact solution of the JC model without RWA.
本文的結(jié)果表明：這種方法不僅能夠處理在旋轉(zhuǎn)波近似下的二能級(jí)體系，也可以用來精確求解無旋轉(zhuǎn)波近似時(shí)的JC模型。
The stimulated photon echo in degenerate two-level system has been studied.
研究了簡(jiǎn)并二能級(jí)系統(tǒng)的受激光子回波效應(yīng)。

二能級(jí)系統(tǒng)
The model of two-level system coupled with a single-mode field has always been a basic and important problem in physics.
與單模外場(chǎng)相耦合的二能級(jí)系統(tǒng)一直是物理學(xué)基礎(chǔ)研究中的一個(gè)重要研究對(duì)象。
化學(xué)
二能階系統(tǒng)