Readback voltage of perpendicular recording for high track density with ring-type head is theoretically calculated, and rcadback noise is analysed.

本文从理论上对高道密度垂直磁记录环形头读出电压进行了计算，并对道间串扰进行了分析。

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The offtrack and crosstalk properties of perpendicular recording with a single pole head are investigated.

研究了垂直记录单极型磁头的偏道特性及串音特性。

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The trait of the technics technique and equipment consists in the principal axis of grinding head and the axes of workpiece perpendicular disposal.

本工艺和设备的突出特点在于磨头主轴与工件轴线呈垂直布置。

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The severity of the laboratory test was equivalent to an oblique collision with the rocky surface of the Earth - a comet coming in at an angle of less than 25 degrees from the horizon, rather than head on (perpendicular to the Earth's surface).

BBC: Comets could have seeded life on Earth