Just as in the freestyle, head positioning plays an important roll in the backstroke.
和自由泳一样，头部的位置对于仰泳来说也是至关重要的。
The split morph can be used as precision positioner, especially as the secondary actuator in dual stage head positioning servo system of high density hard disk drives.
该分割电极压电致动器可用于精密定位，尤其适合在高密度硬磁盘驱动器的磁头定位两级伺服系统中作第二级致动器。
The main circuits of a magnetic head positioning system with a density of 8 tracks per millimeter (TPM) based on a 4 TPM system are described with the performance of the system analysed and discussed.
本文介绍了一个磁道密度为每毫米八道的磁头定位系统，该系统是将每毫米四道的系统加以改进而得。文中给出了该系统的主要电路，并对系统的性能进行了分析和讨论。
Positioning: Tilting your head back straightens out the line to your stomach.
定位：头向后倾让喉咙到胃的通道变直。
Even so, care should be taken to meet the required facial area and face centering guidelines outlined in this brochure when positioning the subject's head to remove the potential glare.
在定位被拍摄者头部，去除可能出现的反光时，必须注意拍摄时达到本手册上列出的面部区域和面部居中准则。
Notice Ian's overall fit, body, head, and arm positioning when he takes the running start position.
当索普摆出这种出发准备时，请注意他的整体姿态，身体，头部，手臂的摆放（是不是很像起跑）。
When will point positioning 100 posture is adopted in the human body acupuncture, head, head is center.
定位百会穴时采用正坐的姿势，穴位于人体的头部，头顶正中心。
A cantilever screw rod is arranged on the positioning bearing block and is ensured to be coaxial with a seal head cylinder body.
悬臂螺杆安装在定位轴承座上，并保证与封头筒体同轴。
A compound sound head is connected to an apparatus with diagnosis and positioning thrombolytic.
复合声头连接至具有诊断和定位溶栓的仪器上。
This method enhanced the measuring accuracy by using the methods of wave head counting and zero-cross detection, and it implemented 3-d positioning with triangle square wave.
该定位系统采用波头计数与零交叉点检测的方法来提高超声测距精度，并通过三角形方法来实现三维定位。
The inside of the streamline shape head part of the closed type drain tube is provided with the positioning groove of the guide steel needle.
封闭式引流管流线形头部内侧设有导引钢针定位凹槽。
The ejector in the utility model is turned so that the sloping surface can push the clasp out of the positioning hole of the head, therefore reaching the goal of rapid plug-in function.
本实 用新型拨动推件由斜面推挤卡件退出头部的定位孔，以达快速插换的功 效。
Work head spindle (C1axis) USES high precision rolling bearing structure, and Angle encoder close-loop control, which make it get extremely high rotary precision and positioning precision.
头架主轴(c1轴)采用高精度滚动轴承主轴结构，配置角度编码器闭环反馈控制，达到极高的回转精度和定位精度。
The positioning apparatus also includes a drive apparatus for operating the threaded drive mechanism to move the test head to a predetermined position.
所述定位装置还包括用于操作所述带螺纹驱动机构的驱动装置，以将所述测试头移动到预定位置。
By controling the three-dimensional motion of the X-Y table and bond head, precision positioning and desired line-type gold wires can be realized, and an ultrasonic wave bonded method is used.
工作原理是通过X-Y工作台和焊头的三维运动控制，定位并拉出设定的金丝线型，采用超声波热压球焊方法焊接芯片管脚。
NOTE: this machine can be equipped with auto-feeding positioning roller table with high accurate digital readout system. So this is the most favorable single head saw for cutting the corner key.
注：根据客户要求可配置自动送料定位装置，带数字显示定位系统，定位精度准确、效率高，是目前角码切割的理想设备。
The research work of this article is the hardware design of receiving and transmitting unit in the under-water acoustic head of Long Range Ultra short Base-Line Positioning System.
这套系统主要由水下应答器、传载水下声头和船载主控机组成。本论文的研究工作主要是长程超短基线定位系统中传载水下声头内收发单元的硬件设计与实现。
The invention provides a double-head buckle used for positioning an element on an electronic device.
本发明提供一种双头卡扣，用于定位电子装置上的元件。
By controling three-dimensional motion of the X-Y table and bond head, precision positioning and desired line-type gold wires can be realized, and an ultrasonic wave bonded method is used.
工作原理是通过X-Y工作台和焊头的三维运动控制，定位并拉出设定的金丝线型，采用超声波热压球焊方法焊接芯片管脚。
The utility model provides a screw and a screw driver matching with it. The screw comprises a slotted screw head and a screwed screw bolt, and a positioning hole is arranged at the center of the slot.
本实用新型提供了一种配合使用的螺丝和螺丝刀，所述的螺丝包括开有一字槽的螺丝头和有螺纹的螺杆，在所述的一字槽中央有一定位孔；
The utility model provides a screw and a screw driver matching with it. The screw comprises a slotted screw head and a screwed screw bolt, and a positioning hole is arranged at the center of the slot.
本实用新型提供了一种配合使用的螺丝和螺丝刀，所述的螺丝包括开有一字槽的螺丝头和有螺纹的螺杆，在所述的一字槽中央有一定位孔；
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