阀面上 冲有导向孔或微型固阀。
The valve face is provided with a pilot hole or a micro fixing valve.
接下来，宽带双反射带通和导向孔箱体也有很好的效率。
Next in line, the wide-bandwidth dual-reflex and the ported enclosure exhibit very good efficiency as well.
通常的误解就是导向孔设计要比密闭箱设计产生更多的失真。
There is a common misconception that ported designs produce more distortion than sealed boxes.
导向孔的施工是非开挖施工的关键，它决定着非开挖的成功与否。
The oriented hole construction technique is key in no dig engineering, it decides the success or defeated of no dig engineering.
导向孔和双反射带通箱设计比密闭箱的失真更小一些，但是差别不大。
The ported box and the bandpass designs produce less distortion than the sealed box, but the difference is marginal.
用机器钻出安装指针的中心孔及导向孔，以确保铜条在冲切工序固定位置。
The machine drills the "center holes" for the hands as well as the "pilot holes" which will guarantee the positioning of the strip during blanking operations.
从箱体阻尼损失来看，导向孔和双反射带通箱设计在极低频下比密封箱和单反射式带通箱设计有着更大的失真。
Related to the loss of enclosure damping, ported and dual-reflex bandpass designs also exhibit higher distortion levels at very low frequencies than sealed or single-reflex bandpass designs.
双反射带通箱，由于它的导向孔在很大的频率范围内控制了锥盆动作，所以产生的失真最小，同时还表现出最好的功率承受特性。
The dual-reflex bandpass, due to the fact that its ports control cone motion over a wider range of frequencies, produces the least distortion and exhibits the best power-handling characteristics.
设计调制式旋转导向钻井工具控制阀的关键问题之一是上盘阀高压孔的设计。
One of the key problems of designing the control valve of modulation rotary steering drilling tool is the design of high pressure hole of upside valve.
在进行D45型落下孔车曲线通过计算时，又需要考虑导向装置引起的车体心盘支撑的侧移效应。
When the negotiation calculation is made for the D45 well car, it is necessary to consider the side displacement effect of the car body center plate support caused by the guiding device.
采用了保证工件与下模型孔对中性良好的具有导向的组合式模具结构。
The compound mold structure with a guide to assure the center of the part and down mold hole are developed.
所述方法包括在所述孔圆周一边缘上的一个预定位置提供一个打印流体微滴尾部脱离导向配置的步骤。
The method comprises the step of providing a printing fluid droplet tail release guide arrangement at a predetermined position at an edge of a circumference of said aperture.
所述导向柱与柱孔分布在外盖与内盖的圆周上。
The guide post and the post hole are distributed on the circumference of the outer lid and the inner lid.
目前最流行的非开挖铺管技术为导向钻进法，但这种施工法在流砂地层施工时容易发生塌孔。
At present, the most popular trenchless pipeline installation method is guided boring, but in the guided boring cave-in of the borehole wall eternally are encountered in quicksand formation.
分析了激光导向加工时孔产生的误差，实验结果表明，采用激光导向的深孔加工新技术能有效地防止孔偏差。
The axial hole deviations caused by laser-guiding are analysed and the experimental results show that the new technology of laser guiding can prevent effectively the axial hole deviation in...
采用模板剂导向自组装法以三乙醇胺为模板剂合成具有蚯蚓状孔道结构的二氧化钛介孔分子筛。
The mesoporous titanium dioxide was synthesized by using triethanolamine as a template with worm-like mesostructure via self-assembly route.
另外，先加工小孔，加工大孔时再以小孔作导向，能保证良好的同轴度。
What's more, machining first small holes and then taking the machined small holes as the guide when machining large holes can ensure a good axiality.
以间苯二酚-糠醛低聚物为炭前驱体，三嵌段共聚物F127为结构导向剂，通过悬浮辅助的蒸发诱导自组装乳化成球，高温炭化后得到有序中孔炭球。
Ordered mesoporous carbon spheres(OMCs) were synthesized by suspension-assist evaporation-induced self-assembly of resorcinol-furfural oligomers and triblock copolymer F127.
同时，旋转导向钻井工具接收由地面发出的指令，并通过稳定平台单元调控工作液来控制分配单元中的上盘阀高压孔的位置。
The unit for controlling and assigning working liquid takes the filtered mud as the working liquid distributed in three mud pipes in turn.
同时，旋转导向钻井工具接收由地面发出的指令，并通过稳定平台单元调控工作液来控制分配单元中的上盘阀高压孔的位置。
The unit for controlling and assigning working liquid takes the filtered mud as the working liquid distributed in three mud pipes in turn.
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