查询词典 cavity

This item is a new type structure direct-acting overflow valve, which adopts dynamic pressure feedback principle. That is it adds a feedback cavity on common direct-acting overflow valve's core. When there is overfall on valve port, the hydraulic force of valve port will balance with feedback cavity's hydraulic force and spring force, so it can decrease spring's stiffness, just like adding a hydraulic spring, which works together with mechanical spring, so as to minish valve port pressure range.

本项目是一种新型结构的直动式溢流阀，采用动压反馈原理，在普通直动式溢流阀阀芯上增加一反馈腔，当阀口溢流时，阀口的液压力与反馈腔液压力和弹簧力相平衡，从而可以减小弹簧的刚度，等于增设了一根液压弹簧，使其和机械弹簧一起工作，以达到减小阀口压力变化范围的目的。

ABSTRACT: This design elaborated the patch cord plank outer covering plastic parts injection mold design process, including the cavity quantity and deciding the arrangement of the cavity, selecting the machine for injection, the feed system design, choosing the molding boards and their standardized parts, design core-pulling outfit and formed accessories and so on, the basically design flow and the process of injection-mold design based on Pro/E was illustrated.

摘 要：本次设计阐述了插线板外壳塑料零件的注射模设计过程，包括型腔数量和布局的确定、注射机选择、浇注系统设计、模板及标准件的选用、脱模及抽芯机构的设计、成型零件的设计等，阐述了采用Pro/E进行注塑模具设计的基本流程以及模具各部分结构的设计过程。

Socket products usually have complicated cavity, over the process analysis to plug part, the forming problems in special-shaped cavity forming, normal demoulding and large amount of piercer forming are solved successfully.

插座类制件往往具有很复杂的内腔，通过对插座制件进行工艺分析，成功解决了异型内孔的成型和顺利脱模以及大量的成型碰穿孔的成型问题。

By controlling the size of pump beam and inserting an intracavity aperture in the plano-concave cavity, we obtain good contrast optical bottles at semi-confocal, 1/3-, and 1/5-degenerate cavity configurations, respectively.

只要适当的控制泵浦光斑与腔内实光栏的大小，在半共焦腔、1/3简并腔、与1/5简并腔下可以产生不同但是对比度极佳的瓶型光束。

Under the condition of small angle misalignment, the effecton output beam's near-field distribution of CO2 lasers with two-dimensional axisymmetric-fold combination cavity was ascertained after analyzing and simulating beams combination output based on the axis determination of misaligned plano-concave and concave-plano-concave cavity resonator.

为了研究小角度失调对二维轴对称－折叠组合腔CO2激光器输出光束的近场分布的影响，在利用矩阵理论确定平凹谐振腔和凹－平－凹谐振腔失调后的光轴的基础上，采用光束并和思想，对输出光束进行了理论分析和模拟。

Since the Q-factor depends on the cavity substrate loss and matching conditions, we could design oscillators on different substrates with different Q-values of SIW cavity resonators.

由於品质因素取决於谐振器的板材损耗与匹配电路，因此我们可以在不同板材上制作振荡器以获得具有不同品质因素的设计。

By considering this effect,the realizability and the stability of the cavity can be improved, when a high power and asymmetric laser cavity is considered.

利用激光谐振腔的此性质可以对Kerr被动锁模激光器的谐振腔的设计进行优化，从而提高其锁模的可实现性以及谐振腔的稳定性。

According to the frequency formulae of the two kinds of oscillations, the relation between depth of cavity and speed of flow for cylindrical cavity is derived, when the coupling resonance condition is satisfied.

根据文中得到的两种振荡的频率公式，还导出了圆柱形腔满足耦合共振条件时腔深和流速之间的关系。

Our proposal is based on atom-cavity field resonant interaction, the atom interacts resonantly with the mode of the cavity according to the Jaynes-Cummings Hamiltonian.

本文提出一个基于原子和腔场共振相互作用传送未知原子直积态的腔QED方案，原子和腔场通过J-C哈密顿量发生共振相互作用。

In the experiments, the accelerometer and the microphone are used respectively to measure the acceleration on the panel and the sound pressure in the cavity. Piezoelectric ceramics Transducer is used as the control source to control reverberant sound field transmission through a simply supported rectangular aluminium panel into a concrete cavity.

实验中采用加速度计和话筒作为传感器拾取板振动的加速度和闭空间内的声压信号，用压电陶瓷片作为振动控制源来控制混响声场通过简支矩形铝板向混凝土闭空间的声传入。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。