Construction New Method of Entire Seal Fixed Point Ventilation in Modern Mine 全封闭定点通风现代化矿井的建设新思路
A source said the burn-through probably occurred at a seal point between the booster's third and fourth sections. 一位提供消息的人说,烧穿点可能发生在火箭的第三和第四部分之间的焊接点上。
Analysis of Rationality to the Seal Device Structure of the Rotate Axis Without Moving Leaking Point 旋转轴无动泄漏点的密封装置结构合理性分析
Piriformis tendon block in the treatment of piriformis syndrome Construction New Method of Entire Seal Fixed Point Ventilation in Modern Mine 梨状肌大转子止点封闭法治疗梨状肌综合征全封闭定点通风现代化矿井的建设新思路
The design thinking model of non_contacting seal is put for ward based on expatiate on mechanical seal using traditional thinking, and view its significance from philosophial point. 在用传统的思维阐述机械密封的基础上,提出了非接触密封的设计思维模式,并从哲学的角度看待其意义。
After the ink tube is inserted in the pen head component, the seal film is broken by the convex tube upwards, ink flows into a pen point, and a user can write. 当储墨管插上笔头组件后,凸管顶破封膜,使墨水流向笔尖,即能书写。
This paper is reviewed for importance of gas media used in ceramic-to-metal seal technology, it point out that increasing N2 content of working Gas media made ceramic-to-metal seal safe production, decreeing cost and guarantee quality. 叙述了气体介质在陶瓷-金属封接技术中的重要性,提出增加工作气体中的N2含量可以增加其安全生产指标、降低封接成本,并保证金属化质量。
However, the contact phenomena are very complex, because it is not only related with the large deformation of seal, but also related with the position and direction of contact point of the door and the frictional behavior of the door and the seal. 然而密封条与车门之间的接触问题非常复杂,它不仅与密封条的大变形有关,而且与车门的接触点的位置与方向、摩擦特性等有关。
Some seal structures which use in rotation axis leak-free seal point were introduced, compared input with output structure from design angle, and explained the possibility to research and develop. 介绍了用于旋转轴无动泄漏点的几种密封结构;从机械设计角度比较了输入输出部件结构的合理性,说明了研究开发的可能性;
In order to determining melting point of antioxidant D and antioxidant BHT precisely, this paper involves three methods: the capillary without seal, the capillary with an opening and digital melting point measuring instrument. 为了准确测定防老剂D与BHT的熔点,用两端开口毛细管法、一端开口毛细管法和数字熔点仪测定了两种防老剂的熔点。
The present paper puts forward different view on the bringing of the art lettering into the class heading of penmanship and seal cutting under the "J" classed catalogue of the Chinese Library Classification, and elaborates a point of view, drafting a rough classification frame. 本文对《中国图书馆图书分类法》“J”类中,把“美术字写法”纳入“书法、篆刻”类目提出了不同的看法,阐述了自己的观点并拟定了粗略的分类框架。
For calculating the heat expansion displacement quite accurately, and then to process systematic stress analysis and seal design, so there must be a expansion center which keep fixed in any operation condition, as the zero point of calculation of heat expansion displacement. 为了进行比较精确的热膨胀位移计算,以便进行系统的应力分析和密封设计,需要有一个在各种工况下都保持不变的膨胀中心,作为热膨胀位移计算的零点。
The principle of magnetic-fluid reciprocating shaft seal is introduced, some problems of its design and application are analyzed from the point of view of tribological design. 介绍了磁流体往复轴密封的原理,从摩擦学设计角度分析了其设计和使用中要注意的问题。
Surface Reconstruction of Car Seal Based on Point Cloud Data 基于点云数据的汽车密封条的曲面重构
Based on the generalization of the natural gas and crude oil analyses, this paper describes the analysis of source rock seal and fast extraction of the rock with a low boiling point solvent. It further discusses the application and development of the light hydrocarbon fingerprint analysis. 在对天然气和原油轻烃分析先进技术进行概述的基础上,着重论述了岩石轻烃低沸点溶剂密封快速抽提分析技术,并对轻烃指纹分析方法的应用发展作了探讨。
This paper analyzes and selects the typical mechanical seal auxiliary system of centrifugal pump and further describes the selection scheme of mechanical seal auxiliary system from the stand point of practical view. 对一些典型离心泵机械密封辅助系统进行了分析和选型,从工程实际角度对机械密封辅助系统的选择方案作了进一步的阐述。
Through analyzing the explanation of traditional working principle of hydraulic gear pump, the article points out it is incorrect that the seal volume variation of oil absorption and oil pressure are generated by the change of meshing point. 通过分析液压齿轮泵传统工作原理的解释,指出齿轮泵由于啮合点变化产生吸、压油区密封容积变化的观点是错误的。
The seal point is firstly recommended as the low limit of hydraulic and the prediction correlate equation for maximum liquid entrainment has been proposed. 并首次推荐以液噻点作为塔板操作的流体力学下限和提出了最大雾沫夹带的预测关联式。
Analysis of Heat-Contracting Process of Whole Seal Packaging and the Key Point of Quality Controlling 全封热收缩包装收缩过程分析及质量控制要点
There are some problems for operating controllable mechanical seal, including deriving the best work point, choosing and testing controlling parameter and researching feedback performing device. 可控机械密封实践仍存在不少难点,包括最佳工况点的求取、控制参数的选择与测量、反馈执行机构的研制等;
The best way that request absolutely leak-free for equipments seal is cancel dynamic leaking point. 对于要求绝对无泄漏的旋转设备密封的关键技术的最好办法就是取消动密封点。
Modern times in Beijing from a traditional plug seal to open the ancient capital of the Modernization of important turning point of the international metropolis. 近代是北京从一座传统闭塞的古代都城到开放的近代化国际大都市重要的转折期。
Finally, we test and evaluate the electronic seal system and point out some potential directions of research. 最后,对电子印章系统进行测试与评估,并对其研究前景进行展望。
The circle center and radius of seal are calculated with three point determination method of circle, and then the ROI is extracted. 3. 利用三点定圆法计算出印鉴的圆心和半径,提取到印鉴的ROI。3、计算印鉴偏转角度的研究与计算。
Therefore seal is point of penetration first from harmonious society idea suggesting that, have analyzed China bringing forward concrete request had responded to the essential features having, and had analyzed harmonious society target directing further by cause and harmonious society structuring harmonious society. 所以本章首先从和谐社会理念的提出为切入点,分析了中国提出构建和谐社会的原因以及和谐社会所应具有的基本特征,并进一步分析了和谐社会目标指向的具体要求。
The lateral seepage place of fault depends on three-dimension distribution of lateral seal ability of each point in fault zone which established by using SGR. 断层侧向发生渗漏的部位取决于利用SGR所建立起的断裂带各点侧向封闭能力三维空间分布。