查询词典 north magnetic pole

Since then, people began to analyze why the compass pointer will be a departure from the magnetic North Pole, and will be divided into several categories of reasons.

从那时起，人们就开始分析罗盘指针为何会偏离磁北极，并且将原因分成几类。

Extreme volatility. Your magnetic North Pole is shifting its

你们地球的北磁极，在以一个飘忽不定，不可预测的方式移动。

Moreover, Gilbert was the first to systematically study phenomena caused by the earth's magnetism; he was the one who proved that the compass needle always points to the magnetic north pole of the earth.

威廉吉尔伯特（ 5月24日1544至30年1603年11月）是伊丽莎白一世的王室医生。此外，吉尔伯特是第一个系统研究的现象所造成的地球磁场，他是一个谁证明，磁针总是指向磁北极的地球。

On the two sides of the north pole two auxiliary magnets make the terrestrial globe run automatically at average speed by rotating the magnetic field generator.

当距离变小时，控制器自动减弱磁场，当距离变大时，控制器自动增强磁场，从而保证地球仪与控制器有一定距离，在北极两侧有两个辅助磁铁，通过旋转磁场发生器使地球仪匀速自转。

Therefore this dissertation applies adaptive control technology to realize the digital control of magnetic north-seeking systems. The simulation results show that the pole assignment adaptive PID control method is superior to the classic PID control. This adaptive controller achieved the desire of system design, so the task of system design is accomplished.

结果表明在磁悬浮寻北仪系统的控制过程中，极点配置自适应PID控制方法明显优于普通PID控制方法，该控制器在稳定性及抗干扰性等方面均达到了系统设计的要求，从而完成了系统设计的任务。

One of you asked this question."Does a magnetic compass point to the North Pole?"

前段时间有观众向我们提问：&罗盘的指针真的指向北极吗？&

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。