two-level energy system

Once a magnetic field is applied to the system, the spin degeneracy is broken and the energy of the electron is cut into two energy levels. The whole tunnelling process of the electron through the quantum dot is described by quantum master equation.

当该系统中存在一个外加磁场时，电子的自旋简并被破坏，分裂成两个能级，电子的整个隧穿过程可以用量子主方程（Quantum Master equation）来描述。

Based on dynamical energy transport and thermodynamic energy balance in the earth's atmosphere-ocean system a steady two-dimensional climate model with residual circulation is proposed.

本文从动力学能量输送和热力学能量平衡的思想出发，提出一个含有剩余经圈环流的定常二维气候模式。

This system uses the slip frequency control theory to carry on the control, because the DC part of two transducers are parallel, when experiment may engender the energy feedback to achieve the energy conservation goal.

该系统采用差频控制理论进行控制，由于两台变频器的直流部分并联，实验时可构成能量回馈而达到节能目的。

The cushion chamber system's energy of high-speed cylinder is theoretically analysised, "two hypothesis of linear relationship" and cushioning principle with self-adaptation capacity based on "two hypothesis" is presented.

对高速气缸缓冲腔系统能量进行了深入的理论分析，提出了两个线性关系的假设和基于两个假设的自适应缓冲原理。

When the energy levels in two quantum dots are detuned, the localization of the electron depends on the initial state of the system due to the Coulomb interaction and electron pair tunneling.

两量子点能级失谐时，库仑作用和电子对隧穿作用使得电子局域化特性依赖于系统的初态。