Using effect of the device is good with 2bj-3 precision drill forming a complete set.
该装置与2bj—3型气吹式精密播种机配套，使用效果良好。
If needed, all the data can be printed. So that the seeding qualification of precision drill can be ensured.
也可根据需要将这些参数打印下来，确保精密播种的质量。
Seeding monitoring system is an important component of present precision drill and its function directly affects the quality of precision seeding.
精密播种机的监测系统是现代精播机的一个重要组成部分，其性能的好坏将影响精密播种质量。
The paper uses the method of value engineering project appraisement to compare corkscrew groove-wheel wheat precision drill and wheat pneumatic precision drill.
利用价值工程方案评价的方法，对螺旋槽轮式小麦精量播种机和气吸式小麦精量播种机进行方案评价比较。
The mathematical model of the precision drill unit with parallelogram linkage was brought up and its dynamic behaviors were analyzed with this mathematical model.
本文提出了具有平行四连杆仿形机构的精密播种单体的数学模型，并使用该数学模型对精密播种单体作了动力学分析。
In order to improve the drilling quality and the automation of the precision drill, an automatic monitoring alarm and digital seed rate display system was developed.
为了提高精密播种机的工作质量和自动化水平，研制了工况自动监控报警系统及播量数显系统。
There are many factors affecting the characteristics of the suction-type metering device for precision drill. The important one is the vacuum degree or suction power of the vacuum chamber.
影响气吸式排种器排种性能的因素很多，而决定吸力的吸室真空度是很重要的因素。
The device is posterior cutter grinding to drill in cone surface grinding method that it can vouch for drill with reasonable back Angle, and symmetry precision is high.
本装置采用圆锥表面磨法对钻头进行后面刃磨，可保证磨出的钻头具有合理的后角，对称精度高。
To improve the precision and the efficiency in straightening drill pipes, we make a research in the control system of the automatic hydraulic straightening machine.
为了提高钻具校直的精度与效率，我们进行了全自动液压校直机控制系统的研究。
Including fixed screw air compressor, centrifugal compressor, movable screw air compressor, drill, screw vacuum pump, air dryer, the precision filter, etc.
包括固定式螺杆空压机、离心式空压机、移动式螺杆空压机、钻机、螺杆真空泵、空气干燥机、精密过滤器等。
The utility model has the advantages that the verticality of the axial lead of the electric drill and a basal plane is good, and the machining precision of drilling holes is high.
该磁座钻的电钻轴心线与基面垂直度好，钻孔加工精度高，有很好的推广应用前景。
These high precision instruments are more than 20 kinds and widely used for oil industry to measure the monomial parameters of taper, pitch and height screw for oil pipe, canola and drill shank.
肮 该系列产品是广泛应用于石油行业的高精密仪器，共有20多个品种，主要用于石油油管、套管、钻杆锥形螺纹的锥度、螺距、高度等单项参数的测量。
By designing and making the roll-over drill jig, the processing precision of hole is improved and work intensity is reduced.
通过设计制造翻转式钻模，提高孔的加工精度，降低劳动强度。
The utility model has the advantages of stable working condition, high drill hole precision, convenient maintenance, easy manufacture and wide application range.
本实用新型工况稳定，钻孔精度高，维修方便，易于制造，使用广泛。
Machining precision metal parts for drill bits, according to customers' drawings or samples.
钻头零部件机械加工，欢迎来图来样。
Machining precision metal parts for drill bits, according to customers' drawings or samples.
钻头零部件机械加工，欢迎来图来样。
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