研究了基于叶片弦长的主流雷诺数和二次流-主流流量比对冷却效率的影响，并与叶片上圆柱形孔排的气膜冷却效率分布进行了对比。
The influences of re based on the blade chord length and coolant-gas flux ratio are tested, and comparison is made between the effect of the converging-expanding hole rows and cylindrical hole rows.
1906年，它们可以在有排孔的传送带上被压制生产，一次十二个，此后它变得更便宜。
It became cheaper still when, after 1906, they could be extruded by perforated conveyor belts a dozen at a time.
打在卡片上的每一排孔对应设计的一排经线。
Each row of holes punched in the CARDS corresponds to one row of thread in the design.
如果您的花木种植区一半的道路，或与无孔材料覆盖，降水将流失到其他排的种植面积的土壤。
If half of your landscaped areas are paved or covered with nonporous materials, precipitation will drain to other to drain to planted soil areas.
在不同射流角度的错排射流的冷却通道中，大射流从射流孔冲击出来后在通道内形成旋涡，并使旋涡变得更强烈。
In the investigated cooling channel with different Angle stagger jets, the big jets cause swirl flow in the middle of channel and make the swirl flow stronger.
利用瓦斯抽排孔把井下瓦斯预抽后排到地面，是我国目前煤矿预防瓦斯事故和进行综合利用能源的有效方法之一。
It is one of the effective methods for energy and resources comprehensive utilization to have gas drained to the ground by using gas-discharging hole in China.
压风排碴煤层抽放孔施工除尘一直是个难题，坪湖煤业工程技术人员通过研究和反复实验，终于较好地解决了捕尘、除尘问题。
The engineers and technicians of Pinghu coal industry finally solved the problems of dust caught and removal which exist in the construction of pressing the wind platoon the coal bed.
下水道出入孔：一种常带有盖的孔道，人可以由此孔进出排道、锅炉、下水管或类似设施。
A hole, usually with a cover, through which a person may enter a sewer, boiler, drain, or similar structure.
此外，文中提出了一个适用于多排孔延时爆破振动速度预测模型的依据公式。
Besides, a basis formula of vibration velocity prediction model that is suitable for multi-row millisecond blasting was proposed.
早期沉降型埋藏区地层埋藏较深，孔店组和沙三段均具有生排烃能力，但早期排出的烃存在一个保存问题；
In the early subsiding region, both the Kongdian Formation (E k) and the Shahejie Formation fall into oil window, but preservation of the expulsed oil and gas is a problem.
非标定制说明：可按照颜色，亮度，长宽尺寸，LED灯排数，安装孔位定制。
Bar lights can be customized by color, intensity, length, width, LED rows and instillation position.
通过试验得到了转速与播量、破损率和排种均匀性之间的关系，及型孔列数和播量的关系。
By the test, the relation of speed and seeding quantity, seeding uniformity, broken rate, and the relation of seeding quantity and column quantity of hole have been gotten.
大孔径直排孔的作用是加强矿井排水能力，保证煤矿安全生产。
The large diameter direct drainage borehole is used to strengthening mine drainage capacity, to ensure coalmine safety production.
实验中对涡轮叶片采用四排气膜孔的冷却方案，气膜孔为圆柱形。
The surface of a gas turbine blade was cooled by four rows of cylindrical holes in the experiment.
介绍了复式型孔的结构、基本原理和控制排种量的方式。
The paper introduced the structure, basic principles and control patten of seed rate of the double hole.
通过实验与工业用基本型封头对比，结果表明错排孔板型封头能够明显地改善换热器出口截面流量和温度分布的不均匀性。
Compared with the ordinary header, the experimental results show that staggered perforated plate header greatly improves the distribution of outlet flow and outlet temperature.
论证了在一定条件下，排种器锥孔中的压力和速度分布可以近似的按角形域进行分析和计算。
In certain conditions pressure and velocity distribution of air flow inside the conical holes of the seed-metering wheel can be analysed and calculated approximately as in an angular region.
计算模拟了两排26个气膜孔，每个孔截面的网格数达到近200个，计算域包括了供气腔。
The computational domain were extended to the coolant supply plenum, and two rows of 26 film cooling holes were simulated, with about 200 cells across each orifice cross-section.
叙述了三维光弹应力分析在三峡工程排漂孔坝段中的应用。
An application of three dimensional photoelastic stress analysis in a dam with drains for floatage at the three Gorges Project is described.
利用小直径麻花钻，改磨成“排孔钻”，并运用于技工学校的钳工专业技能培。
Make use of small diameter twist drill to change it into drill of wearing intersect holes and put it into the ability education of locksmith.
研究了塔器CAD中塔盘分块与排孔的可视化算法结构。
The structure of visualized algorithm on block dividing and hole arrangement of tray was studied in the tray CAD.
分析了小直径深孔振动钻削对钻头的要求；设计了一种新型内排屑深孔钻头；分析了该钻头的结构和刃磨特点，进行了振动钻削试验。
Based on analyzing the demands of small-diameter deep-hole drill for vibration drilling, a new inner-chip removal drill was designed.
排液的最终结果是在泡沫铝底部形成无泡层，气泡的流变引起泡沫铝梯度孔结构的变化；
The drainage phenomenon leads to formation of free-bubble layer and the rheology of bubbles leads to formation of gradient pore structure.
组合内窝孔玉米精密排种器是一种新型的内侧充种垂直圆盘排种器。
A new type of vertical plate metering device filling in inside, i. e., corn precision metering device with concave metering inner cell was developed.
传统上采用钻孔方法加工小孔径深孔时，存在排屑困难、钻头易折断等缺陷。
When traditionally processing the parts with small deeper hole by the method of drill, there is certain difficulty in excluding bits and the bit is broken easily.
传统上采用钻孔方法加工小孔径深孔时，存在排屑困难、钻头易折断等缺陷。
When traditionally processing the parts with small deeper hole by the method of drill, there is certain difficulty in excluding bits and the bit is broken easily.
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