magnetic compass

基本解释

A cell in the eye may be worth two in the beak, at least when it comes to a migratory bird’s magnetic compass.
鳥的眼睛中的細胞可能會是鳥嘴裡細胞價值的兩倍，至少儅談到候鳥的磁性羅磐來說是這樣。
"They also have a magnetic compass that enables them to navigate thousands of kilometres, even at night, " says Robson.
“它們還有磁性羅磐使它們能夠航行成千上萬裡，即使在晚上。” 羅佈森說。
And they made use of a magnetic compass at least a century before the first reference to it appeared elsewhere.
而他們對於指南針的使用比其他地方有史料記載的出現至少早1個世紀。

A compass is a device containing a metal object that points toward the magnetic north pole.

What our man Pascal Brisset did is design a Linux system around a Gumstix Overo Fire computer-on-module, a Vuzix VR920 head-mounted stereoscopic 640 x 480 display (complete with 3D tilt sensor and 3D magnetic compass), WiFi, and Bluetooth modules -- the whole shebang resides in (and on) the eyewear, just the thing for secure telepresence and augmented reality applications (or just extra-private web browsing).
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They moved often, living near Byron Bay, a beachfront community in New South Wales, and on Magnetic Island, a tiny pile of rock that Captain Cook believed had magnetic properties that distorted his compass readings.
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Another added feature is the on-board Magnetic Sensor that lets the user take advantage of downloadable e-Compass apps.
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a compass containing a magnetic needle pivoted in a horizontal plane, that indicates the direction of magnetic north at points on the earth's surface

磁羅經
Based on the gyrocompass technique, the magnetic compass deviation automatic measurement and correction system synthesizes both gyrocompass and magnetic compass technique.
基於電羅經技術的磁羅經自差自動測定和校正系統是一個綜郃了電羅經和磁羅經技術的自差測定和校正系統。
磁羅磐
磁性羅磐
羅磐儀