heading assembly meaning in English

掘进坏
掘进机械

Multichannel recorders employ four head assemblies which are precisely positioned on a single baseplate to ensure alignment with the tape .
多通道记录仪中有四个磁头组件，精确地安置在同一块底板上，以保证与磁带对准。
In multi - channel digital magnetic record / playback heads , the angle between the parallel lines measuring gap scatter and the nominal direction of tape motion over the head assembly
在多道数字记录读出磁头中，测量间隙变化的平行线与磁带在磁头组合件上运动的标定方向之间的夹角。