它控制主轴马达转动和磁头运动。
在记录磁头已经被去磁之后，卸载记录磁头。
The recording head is unloaded after the recording head has been demagnetized.
在记录磁头已经被去磁之后，卸载记录磁头。
The recording head is unloaded after the recording head has been demagnetized .
高转速的磁盘对磁头稳定性不利，但影响不大。
When the disk rotation speed increases the stability of magnetic head is slightly worsened.
切断交流电源才能维修、清洗磁头、压轮等部件。
Remove the AC supply lead before servicing or cleaning heads, rollers etc.
因为越靠近中央，密度越大，实际上磁头只需移动更短的距离。
Because it is more dense as it moves toward its center, there is actually less movement of the head.
研究了垂直记录单极型磁头的偏道特性及串音特性。
The offtrack and crosstalk properties of perpendicular recording with a single pole head are investigated.
各盘片上在无需移动磁头的前提下即可读取的磁道的集合称为柱面。
The collection of tracks on the various platters that can be read without moving the head is called a cylinder.
引导扇区总是在同一个位置—引导设备的磁道0、柱面0、磁头0。
The boot sector is always at the same place-track 0, cylinder 0, head 0 of the boot device.
用这种 “随机”方式重定位磁头增加了完成事务所需的总时间。
Repositioning the head in this "random" manner added to the total time required to complete a transaction.
磁盘盘片在无需移动磁头的前提下即可读取的所有扇区组成一个磁道。
All the sectors on a disk platter that can be read without moving the head constitute a track.
这个时间是引动机制将磁头从当前位置移到一个新位置所需要的时间。
This is the time it takes the actuating mechanism to move the heads from their present position to a new position.
当磁盘通过磁头时，密度越大，它可以被读取的数据量就越大。
The greater the density, the greater the amount of data that can be read from the platter as it passes under the head.
假设，最初提起，交换需要减少，磁头找寻需要进一步的说明。
The assumption, mentioned earlier, that swapping requires few, if any, head seeks needs further explanation.
现在，各国相互出售的并非葡萄酒这样的最终产品，而是硬盘磁头等中间产品。
Countries now sell each other not final products like port but intermediate ones such as recording heads for hard drives.
然而，要使这一技术像硬盘那样运作，同样位数的数据要不断地穿过读写磁头。
For the technology to work like a disk, though, the same bits of data will have to pass repeatedly under the reading and writing heads.
当电源故障已经发生时，用在电源故障情况下的电力去磁记录磁头。
When a power failure has occurred, the recording head is demagnetized with power in case of a power failure.
这是磁头下的磁盘旋转到能读取所需要数据的正确位置所需要的时间。
This is the time it takes to correctly position the platter underneath the head so that the desired data can be accessed.
记录设备的频率响应是上述记录媒质经过磁头的相对运动速度的函数。
The frequency response of recording devices is a function of the relative speed of the recording medium past the head.
而影响波长响应的主要因素是磁头、磁带接触表面之间的非磁性间隔。
The main factor affecting the wavelength response is the non-magnetic spacing between the contacting surfaces of head and tape.
这样一来，我们避免了将任何其他数据写入驱动器，并减少了任何随机磁头的移动。
That way, we avoided having any other data written to the drive, and reduced any random head movement.
同时这种材料也是高灵敏度保真磁头、高性能磁放大器元件的最佳材料。
At the same time this kind of material is also the best material for high fidelity magnetic head, high performance magnetic amplifier.
等待所需位置出现在阅读器下或磁头下或声音耦合器末端所花费的时间长度。
The time spent waiting for the desired location to appear under the reader or disk heads or at the end of an acoustic coupler.
磁头磁阻的计算中，分别就磁芯材料的磁导率为实数和虚数的情况进行了讨论。
The calculation of head reluctance deals with two conditions in which the core material permeability is real or complex.
首先打开硬盘并观察磁头，如果他们会损坏盘片，并在必要时进行清洁或更换。
Open the HDA first and observe the heads and platters if they are damaged, and clean them if necessary.
优化材料性能参数和自旋阀巨磁电阻磁头的结构参数是微磁器件实用化的关键。
Optimizing the materials properties and structure parameters of giant magneto resistance (GMR) spin valve head is of key importance to application.
优化材料性能参数和自旋阀巨磁电阻磁头的结构参数是微磁器件实用化的关键。
Optimizing the materials properties and structure parameters of giant magneto resistance (GMR) spin valve head is of key importance to application.
应用推荐