Measuring velocity technology can be actualized by muzzle loops, extrapolating method, on-board sensor and GMR (the giant magnetic resistance) turns-counting.
初速时测技术可通过炮口线圈测速、外推法、弹载传感器及地磁计转数法实现。
Since a magnetic field changes the resistance of ordinary metals by only a fraction of a percent, they dubbed this phenomenon "giant magnetoresistance," or GMR.
由于磁场变化对普通金属只会造成远远不到百份之一的电阻变化，这种现象被称为“巨磁电阻”或巨磁阻gmr。
Since a magnetic field changes the resistance of ordinary metals by only a fraction of a percent, they dubbed this phenomenon "giant magnetoresistance, " or GMR.
由于磁场变化对普通金属只会造成远远不到百份之一的电阻变化，这种现象被称为“巨磁电阻”或巨磁阻GMR。
Changing of material resistance with applied magnetic field intensity is called Giant magnetoresistance (GMR).
磁电阻效应是指材料的电阻随外加磁场变化而变化的现象。
In this year it consists of (1)magnetic recording head materials; (2)giant magnet-resistance materials;
本年的综述内容包含：（1）磁记录头材料；
In this year it consists of (1)magnetic recording head materials; (2)giant magnet-resistance materials;
本年的综述内容包含：（1）磁记录头材料；
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