漂移

operation process and arithmetic of the two-position gyro-based north seeker are introduced.

文章介绍了二位置陀螺寻北仪工作过程及算法原理，它采用陀螺仪在相差180°的两点上采样相互对消陀螺常值漂移的方法，提高寻北精度；其突出特点是结构简单，实现方便，精度较好；为了提高寻北精度和缩短寻北时间，文章找出误差源中的转位误差，并分析了转位误差对寻北误差的影响，推导了误差公式，得出转位误差引起的寻北误差是一个常量的结论，同时提出了转位误差的测量与补偿方法。

In order to solve the problem, in this dissertation, a new IA technology based on wavelet-filtering and two-position alignment is proposed. The useful signals of sensors are gained by wavelet filtering; the error angles, constant drifts of FOGs and biases of accelerometers are computed through signals at two positions.

对此，本文提出了一种基于小波滤波方法和二位置对准方法相结合的初始对准技术，采用小波滤波方法提取传感器的有用信号，利用两次转位的信号解算初始对准的误差角、陀螺的常值漂移和加速度计的零偏。

Then the optimal two-position alignment and drift measuring method, which is commonly used in land-based vehicles system, has been studied theoretically and experimentally.

实验结果表明路谱测量系统的水平对准精度优于12，航向角对准精度优于1.2′，三个激光陀螺的常值漂移标定精度优于0.023′/hr.7。

The sixth chapter will discuss the initial alignment of the Marine SINS theoretically. First, the error characters of initial alignment will be analysed, then, a new two-position alignment method together with the realization of the estimation of the gyroscopes' random constant drifts will be presented.

第四部分从理论上着重讨论了舰载捷联式惯导系统的初始对准问题，对初始对准的误差特性进行了较深入的分析，提出了可在初始对准的同时完成对陀螺仪随机常值漂移估计的双位置对准方法，并对该方法进行了理论分析，可行性分析和仿真计算分析。

A community of flat-capped guides — nice touch, that — occupies the town at all times, and our favourite moment comes when you crouch in the damp and dark, listening for the telltale and slightly scary noises that warned a drift miner his tunnel was about to collapse, burying him alive.

阿的平覆盖导游社区-良好的感觉，这-在任何时候都占据了城，我们最喜欢的时刻到来时，在潮湿和黑暗，为搬弄是非，略可怕的噪音，警告他的漂移矿工隧道听你蹲下即将倒塌，掩埋了他的命。

The characteristic of this circuit is that there is no temperature drift and the signal frequency is constant.

该电路具有消除温度漂移从而保证信号频率稳定不变的特点，这将有利于提高基于电磁场的无损检测效果。

A computer simulation based on strong-weak model shows good agreement with the linear theory. The linear theory of the ion trapping instability caused by ions in equilibrium is also introduced in this paper.

包括不稳定性的增长率与中性化系数的关系、阈值与中性化系数的关系、束流的相干频率漂移和展宽、离子在空间的分布和尺寸、离子动态丢失的机制以及离子在储存环内积累的极限。

In the normal strain, a drug molecule binds tightly to the site, but in the drug-resistant strain, it approaches and then drifts slowly away.

在正常菌株，药物分子能够与该位点紧密结合，但是在耐药菌株，药物进入此位点然后慢慢的漂移。

Those ions will perform stable oscillation nearby the beam orbit while their mass is larger than a critical mass. The accumulation of trapped ions nearby the beam orbit, interacting with beam, can cause the tune shift of beam, blowup of beam emittance, increase of local vacuum pressure, and can even lead to the occurrence of beam instability.

这些被俘获的离子在束流轨道附近的积累并和束流的相互作用，会引起束流振荡频率的漂移和展宽、束流发射度的增加、局部真空度的恶化等各种负效应，有时甚至会导致束流不稳定的发生，从而影响储存环的正常工作，在这种情况下采用离子清洗方法将离子清洗掉对保证储存环的长期、稳定的运行是必要的。

So current increases. The increased current strengthens the space-charge effect further. So on and so on, the negative-resistance phenomenon occurs. For mathematical method limiting, SID's potential can't be solved outside channel or under middle, even big current.

对于SITH来说，由空间电荷效应所引起的阳极端场强增大现象导致空穴的抽出效应加剧，这部分抽出的空穴漂移至沟道中促使势垒降低从而加大了电流，而电流的加大又进一步加强了空间电荷效应，如此循环，造成了SITH特有的负阻转折现象。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。