查询词典 head gate

In the light of the problems with imported offshore wellhead, such as being bulky and expensive and being inconvenient to mount and maintain, Model HKY65―21 offshore wellhead is developed. This wellhead consists of tubing head assembly, PHK plate gate valve, safety valve, stop valve, clamp, small four-way connection and choke, and it is small-sized, light-weighted, high-strength, corrosion- and abrasion-resistant, reliably sealed and convenient to mount and maintain. Application shows that the wellhead can satisfy the requirements of offshore production with good performance.

针对海上油田所用国外采油井口装置存在体积庞大笨重、价格昂贵以及与国产设施不配套和安装维护不便等问题，研制了HKY65―21型海上井口装置这种井口装置主要由油管头总成、PHK平板闸阀、井口安全阀、截止阀、卡箍总成、小四通和节流器组成，具有体积小、重量轻、强度高、防腐耐磨、密封可靠和安装维护方便等优点现场使用128套的实践表明，其各项技术性能指标均能满足海洋石油生产的要求，完全可以取代进口产品，经济效益可观

Head back down the trap door, past the monuments this time, and through the next gate.

头坐活门，过去的古迹，这一次，并通过下闸。

Power Station where the main products are: the former pool water level monitor, oil mixing with water signal devices, oil mixing with water monitor, two two-FirstCall / 2 three / two four-way double-acting self-sustaining valve, speed monitoring devices, bearings oil level signal devices, flow, head efficiency monitoring device, the displacement angle of transmission controllers, intelligent two-way transfer of water supply valves, intelligent pressure transmission controllers, automatic self-cleaning water filters, small-caliber recoil-type filter, guided Leaf position switch, automatic qi device, float liquid level controller, temperature indicator, water level monitor, solenoid valve, electric butterfly valve, magnetic flap level gauge, linear displacement transducer, temperature data logging devices, shear sell-off signal devices, vibration, degree of monitoring devices placed, programmable speed monitoring devices, gate opening apparatus such as hundreds of professional instrumentation and automatic control device!........

其中电站主要产品有：前池水位监测仪、油混水信号器、油混水监测仪、二位二通/二位三通/二位四通双动自保持球阀、转速监测装置、轴承油位信号器、流量水头效率监测装置、位移角度变送控制器、智能双向供水转阀、智能压力变送控制器、全自动自清式滤水器、小口径反冲式滤水器、导叶位置开关、自动补气装置、浮球液位控制器、温度显示仪、水位监测仪、电磁阀、电动蝶阀、磁翻板液位计、直线位移变送器、温度巡检仪、剪断销信号装置、振动摆度监测装置、可编程转速监测装置、闸门开度仪等上百种专业仪表与自动控制装置！。。。。。。。。

A conclusion isn't a five-barred gate; and you needn't give your judgment its head, as you give your mare, Atalanta, hers, when you're flying across country at the heels of an unfortunate fox.

一个结论并不是一个装了五道栅栏的大门；在你策马田野追踪一头不幸的狐狸时，你让你的雌马阿塔兰塔尽情驰骋，但你作出这种判断却无需如此尽兴随意。

Reliability analysis of a steel radial gate main frame on the basis of water head statistics analysis is given.

一、前言 n前，以概率理论为基础的极限状态设计法已相对成熟，在许多领域得到了广泛应川。

EXAMPLE: Off the top of your head, can you remember Bill Gate's phone number?

凭记忆你能想起比尔。盖茨的电话号码吗？

Just stopped looking out when little Efren chipped his buck tooth on a parking meter and didn't even stop Refugia from getting her head stuck between two slats in the back gate and nobody looked up not once the day Angel Vargas learned to fly and dropped from the sky like a sugar donut, just like a falling star, and exploded down to earth without even an "Oh."

小埃弗伦用他的虎牙咬停车计时器的时候，你只要不往外看就可以了；蕾弗佳把头伸进后门上两块板条中间的时候，没人阻止她。那天安琪·法加斯学飞的时候，也没人抬头看一下，她像甜麦圈一样从天上掉下来，就像一颗坠落的流星，砸在地上哦都没哦出一声来。

Multiple class partial flow pump:(1)The head coefficient value should be low in the single class partial flow pump.(2)The total area of larynx wicket gate should be 200% the single classs larynx area.

2对于多级部分流泵：(1)部分流多级泵扬程系数的取值应比单级部分流泵的取值偏低一些；(2)部分流多级泵导叶总的喉部面积应是单级部分流泵喉部面积的两倍。

At present, most hydropower plants close the wicket gate by using the closing law with two or three slopes. In fact, as the unit capacity goes up and the turbine working range of water head be even wider than before, so that the fixed closing law with two or three slopes can't control the unit stability effectively when the big fluctuation transient comes op.

目前，普遍采用导叶两段或三段关闭规律，实践表明，随着水轮发电机组容量的增大和水轮机工作水头范围的增大，这种固定的两段或三段导叶关闭方式不能有效地控制机组在大波动水力过渡过程中的稳定性。

The pressure appearance situation of head working place and the tail and main gate of 11-2 coal seam were observed and analysed by many observing means,and the pressure appearance law of this seam was known,which provided referential data for the management of next working place.

通过多种矿压观测手段对11-2煤首采工作面压力显现及上下顺槽压力显现情况进行连续观测并分析，基本掌握了该煤层的来压规律，为同一煤层后续工作面的管理提供了参考数据。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。