冲蚀

Effect of ablative cooling on specific impulse of rocket engine.

烧蚀冷却对发动机比冲的影响。

During the study of Solid Rocket Ramjet, ablation of afterburner thermal insulation is a serious problem, which cannot be ignored.

固冲发动机补燃室绝热层的烧蚀问题是目前固冲发动机研制过程中所面临的一个重要问题。

The calculation shows that with air-breathing propulsion, the maximum velocity is limited.

计算分析发现：空气呼吸模式推进飞行器的最大速度有限；烧蚀模式可以使飞行器产生很高的速度，提高冲量耦合系数和比冲，有利于提高飞行器的最高速度；两种模式相结合的推进方式提高了有效载荷比，但能源利用效率比烧蚀模式要低。

Main Process: etching, press red, note paint, screen printing, Epoxy, imitation enamel, zinc alloy die-casting and so on.

主要工艺：蚀刻、压冲、注漆、丝印、滴胶、仿珐琅、锌合金压铸等。

Main craft: The etching, the pressure to flush, the note paint, silk India, the drop rubber, to imitate the enamel, the zinc base alloy compression casting and so on.

主要工艺：蚀刻、压冲、注漆、丝印、滴胶、仿珐琅、锌合金压铸等。

Then the comprehensive diagenetic facies of the upper Triassic Xujiahe Formation are suggested also. It is concluded that that the compactionfracturesiliceous cementation facies of the thrust belts and the compactiondissolutionchlorite coating facies of foredeep zones are more favorable for hosting oil.

冲断带发育的压实-破碎-硅质胶结成岩相、近前渊三角洲相砂体中发育强压实-溶蚀-绿泥石衬边胶结成岩相和前隆带三角洲相中发育的中压实-溶蚀-绿泥石衬边胶结相均可形成较好的储层。

The main research activities of the Department cover the general layout of hydro projects, hydraulics of spillways for high dams, energy dissipation and river bed or bank erosions, flow induced vibration, cavitation and air entrainment, river ice, hydraulic transient flow simulation and control on hydropower project, pumped storage project and long distance water transfer project, optimization of thermal/nuclear power plant and other industrial cooling systems, investigation of the fundamental theory of stratified/mixing flow and its applications, studies on fluid mechanics and thermodynamics of large scale cooling towers, hydraulic field observations for existing projects, development of instrumentation for physical model tests and field observations.

研究领域主要为水利水电枢纽总体布置、高坝泄洪建筑物水力学、消能防冲、流激振动、空化与空蚀、崩岸水力学与岸坡保护、河冰问题、水电站引水系统中的水力瞬变及调压井水力学研究、跨流域调水工程中的规划及水力控制数值仿真、冷却水的工程水力热力问题研究、环境水力学、火电厂水工模型试验与数值模拟研究、火电厂取排水局部泥沙冲淤试验、模型和原体监测仪器的研制和开发、以及过水现场原体监测。

The Yongjia County great wild goose China valve Limited company is situated at the good communications superiorly, the humanities environment "township of the Chinese pump valve"- the cup northern town, this company specialized production seals the ball valve, the biased half ball valve hardly, low, high-pressured plate gate valve, oil field special-purpose valve, throttle cut-off valve, high-pressured check valve's specialized enterprise.

该系列法门结构合理，密封可靠，操作轻便。密封面均喷焊硬质合金，具有防腐、耐磨、耐冲蚀等优点，且可用于节流。尤其适用于工作压力16MPa—45MPa ，工作温度120℃的水、油、泥浆、天然气管线作控制介质流动的启闭及调节装置。永嘉县鸿华阀门有限公司地处交通便利，人文环境优越的&中国泵阀之乡&-瓯北镇，本公司专业生产硬密封球阀、偏心半球阀，低、中、高压平板闸阀、油田专用阀，节流截止阀，高压止回阀的专业企业。

How to achieve the most efficient rock-breaking is the research direction of the rock-breaking technique.

在不同泵压和淹没压力条件下，针对不同类型的空化喷嘴对高压空化水射流破碎岩石效果进行了一系列实验研究，其主要目的是探讨高压空化水射流的冲蚀能力与水力参数的相互关系，提高破岩效率。

Sunlight sneaks into the crevices of Arizona's Antelope Canyon, painting the undulations crafted by years of flash floods and other erosive processes.

阳光潜行进入岩石裂缝的亚利桑那州的羚羊峡谷，绘画制作的起伏多年的山洪暴发和其他冲蚀的进程。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。