compass needle

Does the compass needle return the original position?

指南针的指针会指回最初的方向 吗 ?

Make a tick mark on the line indicating where the compass needle is pointing.

在直线上画一个小勾作标记，指示磁针的指向。

A compass needle always points to the north.

罗盘的指针总是指向北方.

They can track the earths magnetic field as sensitively as a compass needle.

它们对地球磁场也十分敏感,如同使用了指南针.

This made Albert curious about the unseen forces that could keep compass needle always pointing north.

这使得艾尔伯特对那使指南针的针永远指向北边的看不见的力量很好奇.

the famous saentist shen kuo ( the author of dream creek notes) of the northern song dynasty discovered the existence of magnetic declination ( the angu-lar devicrtion of a compass needle from true north),

北宋著名科学家沈括（《梦溪笔谈》著者），在制作和应用指南针的科学实践中发现了磁偏角的存在。

A compass needle points ( to the ) north.

罗盘的指针永远指向北方.

Spellbound, Albert listened to his father explain magnetism, the strange force that made the compass needle point north.

阿尔伯特入迷地听父亲解释磁力，一股使罗盘的指针指向北方的奇特的力量。

the oscillation of the compass needle

罗盘指针的摆动

a compass needle

罗盘指针

The needle of a compass points to the north.

罗盘的指针指向北方.

A compass needle points north.

罗盘指针指向北方.

What happens to the direction of the compass needle? Why?

指南针的指针方向会发生什么变化? 为什么?

The compass needle always seeks the north.

指南针的针总是指向北方.

The compass needle indicates a point directly to the north.

指南针的指针指示出一个正北方向的点。

Does the direction of the compass needle change?

指南针的指针方向会改变 吗 ?

A compass needle always points north.

罗盘指针总是指向北方.

The compass needle was pointing north.

罗盘指针指向北方。