查询词典 high-headed

China's silk screen business card printing and membership card making material, such as screen, photoptic, innovativeink made efficiencymajor, but overseas manufacturer of screen printing material there is a certain gap compared to, such as: high strength, low-high protrudent variability, high ISO noise eye screen non-diazoresin-peripherin-gum; UV ink, ink, etc.

我国丝网制卡和会员卡制作材料如丝网、感光胶、油墨均取得了长足的发展，但与国外先进厂家生产的网印材料相比尚有一定差距，如：高强度、低伸变率的高目丝网；高感光度非重氮型感光胶；UV油墨、水性油墨等。

The appearance of heterojunction high electron mobility devices has made the new vigor poured into the development of GaAs MMICs. Pseudomorphic high electron mobility transistors have outstanding high-frequency characteristics, power characteristics and low-noise characteristics. And these merits have made the PHEMTs one of the most promising devices.

异质结高电子迁移率器件的出现给GaAs MMIC的发展注入了新的活力，赝配高电子迁移率晶体管具有优异的高频特性、功率特性和低噪声特性，使其成为现今微波单片集成电路发展中最具应用前景的器件之一。

Pulse detonation engine is a new concept of propulsive engine which uses high temperature and pressure gas produced by intermittent or pulsant detonation wave to generate thrust. PDE has many desirable advantages, including high thermal dynamic cycle efficiency, low specific fuel consumption, high thrust/weight and specific impulse, simple configuration, and will become propulsive device of aviation and spaceflight aerocraft in 21st century.

脉冲爆震发动机是一种利用间歇式或脉冲式爆震波产生的高温、高压燃气来产生推力的新概念发动机，这种发动机具有循环热效率高、燃料消耗率低、推重比高、比冲大、结构简单等优点，将成为21世纪新型的航空航天飞行器的动力装置。

High expansion foam extinguishing system has the features of high output, low water damage, high reburn resistance, and low cost, it extinguishes class A and class B fire by fully flooding and covering, and it is efficient in controlling floating fire by liquefied petroleum gas and liquefied natural gas.

高倍数泡沫灭火系统具有发泡倍数高、水渍损失小、抗复燃能力强、成本低等特点，以全淹没和覆盖的方式扑灭A类和B类火灾，还可以有效地控制液化石油气和液化天然气的流淌火灾。

It abandon the traditional measure that divide the development course of the scientific and technological park according to the time, and redistrict their development courses according to the logic route that the park grew up, then divide development course into three stages: embryonic stage, it introduce domestic and international agricultural new and high technology , advanced equipment directly, engaged in running an enterprise on a commercial way, use the new and high technology to carry on precise, deep processing or storing and keeping fresh to the high-quality agricultural and animal products, do not have cooperation with local peasant basically; the stage of growing up, the park brings along local peasants production, does not confine to the production of the industrial base in the park again, a kind of nonstandard cooperative form has appeared between peasant and park; at ripe stage, the park sets up the training center of agricultural science and technology, carry on the professional technical training to the industrial base and peripheral peasant, spread through three kinds of diffusion effects, such as radiation, the grade

摒弃了按时间划分科技园区发展历程的传统作法，按照园区成长的逻辑路线对其发展历程进行了重新划分，将发展历程分为三个阶段：萌芽阶段，园区内直接引进国内外农业高新技术、先进设备，从事企业化生产，运用高新技术对优质农畜产品进行精、深加工或储藏保鲜，与当地农户基本上没有合作关系；成长阶段，园区带动当地农产生产，不再局限于园区內产业基地的生产，农产与园区之间出现了一种不规范的合作形式；成熟阶段，园区建立农业科技培训中心，对产业基地及周边农产进行专业技术培训，通过辐射扩散、等级扩散、跳跃扩散三种扩散效应，把经济动力和创新成果传导给周围地区，园区进入规范化管理阶段。

On the basis of existing study and report, the types of high temperature solid lubricants are renewedly introduced, and the depositing processes of high temperature solid self-lubricant coatings are explained. The concept of designing coatings is introduced, and trend of development of high temperature solid self-lubricant coatings is pointed out.

本文在综合国内外研究和报道的基础上，归纳了高温固体润滑剂的类别划分，阐述了高温固体自润滑涂层和制备工艺的发展，提出了高温固体自润滑涂层设计的概念，指出了高温固体自润滑涂层发展趋势。

The rheologies of two types of high-density water-based drilling fluids including the fresh water-based drilling fluid and salt water-based drilling fluid were tested at high temperatures of 50℃, 80℃, 120℃, 150℃, 180℃, 200℃ and 220℃ respectively, and at high pressure of 5MPa using Fann50SL Reometer.

以室内研制的抗高温高密度淡水基和盐水基钻井液为基础，采用Fann50SL高温高压流变仪对钻井液在不同温度下的流变性进行了测试。

Silicon powder, processed by high-quality silicon metal lump, is silver-gray or dark gray with high melting point, good heat resistance, high resistively and oxidation resistance.

金属硅粉采用优质工业硅加工而成。是银灰色或暗灰色粉末，其熔点高，耐热性能好，电阻率高，具有高度抗氧化作用。

In order to do research on pipe flow and pump characteristics of polymer flooding and water flooding rod-pumped well in especially high water-cut stage, rheometric test aimed at production stream from polymer flooding and water flooding rod-pumped well in especially high water-cut stage has been made, and the characteristic of production stream in especially high water-cut stage is confirmed as Newtonian fluid. Experiments using different mediums about pipe flow and pump characteristics is made. Frictional resistance and coefficient of friction resistance of annulus fluid between sucker rod and the pipe flow is calculated under different working conditions. Frictional resistance between plunger and pump barrel under different parameters is calculated based on related theory of pump characteristic and the strained analytical model of oil-well pump. Besides, using the theory of slit flow and hydraulic -clamping pressure, the frictional resistance is calculated, and the error between the result and measured value is no more than 13%.

为研究特高含水期水驱及聚驱抽油机井管流特性与泵特性，本文针对特高含水期水驱及聚驱井采出液进行了流变性试验，确定了特高含水期油井采出液的性质属牛顿流体；利用不同介质，进行管流特性与泵特性试验，得到了不同工况下杆、管环空流的摩擦阻力和摩阻系数；根据泵特性相关理论和抽油泵受力分析模型，计算了不同参数下柱塞与泵筒间的摩擦阻力，并利用缝隙流与液压卡紧力理论对柱塞与泵筒间的摩擦阻力进行了计算，计算结果与实测值误差在13%以内。

It is well known that the large lattice mismatch (16%) and thermal expansion coefficient mismatch between GaN and sapphire substrate are the main origins of TDs. By new growing technique of LEO, we acquired high quality GaN films almost free of TDs. The stress characteristics in GaN films with MLTB growing technique is dependent on growing systems and conditions, and the changes of stress and dislocation density are rightabout; Combining buffer layers of high temperature and low temperature is first developed to growing GaN films with low dislocation density, and the mechanism of lowering TDs density is that the first buffer layer of high temperature can make nuclear in second buffer layer of low temperature bigger. This technique also can restrain yellow luminescence effectively.

众所周知，晶格失配和热应力失配是GaN异质外延中位错产生的主要原因；为此，我们对几种降低缺陷的MOCVD外延生长方法进行了新的尝试，其中尝试了侧向外延生长技术，得到了低位错密度（小于10〓/cm〓）、高质量的GaN外延层；尝试多低温缓冲层法，发现材料中的应力特性与生长系统和生长条件有关，材料中的应力与位错密度按相反方向变化；首次尝试高低温联合缓冲层法，材料中高温缓冲层可以使随后的低温缓冲层中成核颗粒增大，从而导致随后高温GaN外延膜中位错密度降低，并且能够有效地抑制黄光峰。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐