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magnetic needle compass 磁针罗盘
The iron in the ship caused a deviation of the magnetic needle of the compass. 船上的铁导致了罗盘磁针的偏离。
The magnetic needle points to the north. 磁针指向北方。
The magnetic needle points to the south. 磁针指向南面。
Do you know who invent magnetic needle? 你知道指南针是谁发明的吗?
A compass is essentially a magnetized needle mounted in such a way that it can swing freely. 实质上，指南针就是一个支起来能自由摆动的磁针。
A device that eliminates or progressively diminishes vibrations or oscillations,as of a magnetic needle. 阻尼器，避震器用来消除或逐渐消除震动或摆动的设备，如磁针的
A device that eliminates or progressively diminishes vibrations or oscillations, as of a magnetic needle. 阻尼器，避震器用来消除或逐渐消除震动或摆动的设备，如磁针的
An instrument used to detect the presence and determine the direction of electric currents by the deflection of a magnetic needle. 验电器一种利用磁针的偏传检测电流存在及测定其方向的仪器
The rectangular brass frame surrounds a high-visibility magnetic needle that pivots on an adjustable support. 一个清楚可见的磁针以一可移动的轴支撑，旁边的矩形框架是黄铜制成的。
The pulse magnetic needle apparatus can increase the expres-sion of bFGF, prolong the time of expression, improve blood supply,abate injury of CNS. 脉冲磁针仪可使bFGF表达增加，表达时限延长，改善供血，减轻中枢神经元损伤；
A compass needle points (to the) north. 罗盘的指针永远指向北方。
The needle is made of some parts such as minus pressure needle theca, polar mark, transparency magnet, forceful magnetic needle, defensive rubber circle and so on. 由负压针囊、强力磁针、透明磁宫、极性标体、防护胶圈等部件组成。
This method was rarely used because the magnetic needle would easily slide.The second was to hang the magnetic needle in a windless place using a piece of silk. 由于航海事业发展的需要，人们又开始使用了以此为原料水浮式指南针在阴雨天辨别方向。
A device used to determine geographic direction, usually consisting of a magnetic needle or needles horizontally mounted or suspended and free to pivot until aligned with the magnetic field of Earth. 指南针用于确定地理方向的设备，通常包括一个或多个水平安装或悬挂的磁针，可在枢轴上自由活动直到与地球磁场在一条线上
He broke into the long easy lope, and went on, hour after hour, never at loss for the tangled way, heading straight home through strange country with a certitude of direction that put man and his magnetic needle to shame. 他突然轻快地奔驰起来，一小时接一小时地跑，从没因路径的错综复杂而迷路，他越过陌生的地带，一直朝家跑回去，方向准确得都要令人类及其罗盘针自愧不如。
The compass needle always seeks the north. 指南针的针总是指向北方。
A compass needle always points north. 罗盘指针总是指向北方。
The needle of a compass points to the north. 罗盘的指针指向北方。
The needle of a magnetic compass points to the magnetic north pole. 磁性罗盘上的指针指向北方磁极。