查询词典 visibility

Furthermore, it applied the sign of signed volume of tetrahedral to the visibility test of facets.

实验结果表明，基于符号体积值的Delaunay逐点插入法的点定位操作效率较高，计算量相对减少。

It will expose the design problem of maintainability of civil airplane to the early stage of design. This paper discusses the composing of the virtual maintenance environment, builds non-immersion virtual maintenance environment of undercarriage, and establishes a part library management system. The characteristic of maintainability models and maintainability analysis based on virtual technique is researched to give the maintainability frame model of civil airplane virtual maintainability analysis. All levels of maintenance time model and maintenance man-hour model are established. Analog-Huffman code is proposed to optimize space partition method in traditional collision detection arithmetic."Maintenance therblig"is brought into the broken down of maintenance tasks, and the new maintenance tasks broken down method is proposed. The demands of human measure, position, and equipment layout in human engineering are discussed, and the verification methods of human measure, position and equipment layout in virtual maintenance are given. Basic principle and verification procedure of maintainability virtual verification is developed primarily, and the reachablity, the visibility, and posture-comfortability are verified.

本文论述了虚拟维修环境的组成，构建了某型飞机主起落架非沉浸式虚拟维修环境，建立了维修对象的零件库管理系统；研究了基于虚拟技术的维修性模型特点及维修性分析流程，给出了基于虚拟技术的民机维修性分析框架模型，并结合传统维修性模型，建立了各级维修时间模型和维修工时模型；提出类HUFFMAN编码，结合人因工程的要求，优化了传统碰撞检测算法中的空间分割法，使之适用于柔体；在维修性分解中引入"维修动素"，给出了与CATIA、DELMIA等应用软件结合紧密的维修任务分解方法；论述了人因工程中对人体尺寸、姿势、设备布局的要求，给出了虚拟维修中人体尺寸、姿势分析、民机内设备布局的验证方法；初步制订了维修性虚拟验证的基本原则和验证程序，并结合具体实例对可达性、可视性、干涉性以及人体姿态舒适性进行了验证，较清晰、真实地反映了维修人员的维修状态。

A large-scale LED display, with good visibility on a well-traveled thoroughfare, can be a valuable advertising medium.

大型LED显示，具有良好的能见度良好的旅游通道，可以是一个有价值的广告媒介。

Visibility analysis is used to analyze the finding probability of the target detected by observers in three dimensional space.

所谓通视性分析就是分析在三维空间中观察者发现目标的概率。

In the industry to enjoy a certain degree of visibility.

在业界享有一定的知名度。

For example, if you have a button, you can toggle its visibility by using a simple combination of JavaScript and CSS.

比如，如果你有个按钮，你可以通过JavaScript跟CSS的简单结合来切换它的可见性。

Their visibility derives simply from the fact that they are in the topmost scope.

它的可见性是简单的来自这个事实，它们是在最顶层的作用域中。

Low smoke: There is little smoke in burning, that is, high ratio of light transmission visibility

低烟：燃烧时产生的烟尘较少，即透光率较高。

For two reasons, one is visibility is poor, and two they float better through turbid waters.

原因有两个，一个是能见度差，他们两个更好透过混浊浮水域。

The relative humidity for those matters is approximately 80%, so it is suggested that the weather phenomena, the visibility deterioration caused by atmospheric turbidness resulting in blur of visual field, is determined as haze when relative humidity is less than 80%, while as fog when relative humidity is large than 90%, and as the mixture of haze and fog the main constitutes are still haze when the relative humidity is between 80% and 90%.

建议将相对湿度小於80%时的大气混浊视野模糊导致的能见度恶化的天气现象确定为霾，相对湿度大於90%时的大气混浊视野模糊导致的能见度恶化确定为雾，相对湿度介於80%~90%之间时的大气混浊视野模糊导致的能见度恶化是霾和雾的混合物共同造成的，但其主要成分应该是霾。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。