查询词典 basic angle

Objective : To evaluate the clinical efficacy of Nd:YAG laser iridectomy for primary angle-closure glaucoma and angle-closure glaucoma secondary to uveitis.

目的 评价NA：YAG激光虹膜切除术治疗原发性闭角型青光眼和葡萄膜炎继发青光眼的临床疗效。

Methods : 219 eyes of 192 patients with primary angle-closure glaucoma and 9 cases with angle-closure glaucoma secondary to uveitis were treated by NA: YAG laser iridectomy, and the clinical effects were then retrospectively analyzed.

回顾分析192例219眼原发性闭角型青光眼和9例葡萄膜炎继发青光眼，接受NA：YAG激光虹膜切除术后的临床效果，随诊16～46月。

Although 25 eyes presented with acute angle closure glaucoma, 6 eyes were insidious onset and asymptomatic. While 27 eyes relieved pupillary block after laser iridotomy or surgical peripheral iridectomy, 4 eyes required vitrectomy or laser photomydriasis to relieve pupillary block. Five eyes (16%) developed chronic angle closure glaucoma due to peripheral anterior synechia. one could be controlled by chronic medical therapy, three required trabeculectomy, the another one even required cyclocryotherapy because poor IOP control after trabeculectomy.

虽然大多数的病例（25只眼）以急性发作为临床表徵，但有6只眼为隐袭性，无任何临床症状。27只眼经雷射虹彩瞳孔术或外科周边虹彩切除术后可以解除瞳孔阻塞，另4只眼无法解除而需作玻璃体切除术或雷射光瞳孔放大术。5只眼(16%)因周边前黏连发生慢性隅角闭锁性青光眼，其中1只眼可以药物控制，3只眼需做小梁切除术，另1只眼做小梁切除术后眼压仍无法控制而接受睫状体冷冻治疗。

Analyzing the isobar distribution under the flight condition of zero attack angle and ±5°attack angle when inlet starts and unstarts,the unstart of inlet can be concluded.

通过对不同攻角飞行条件下起动和不起动时压力分布的分析，得到进气道不起动的结论。

I could verify that all three of them have got about 8.5 degrees of real angle, which yields an apparent angle of 60 degrees for the DF and the BPO, and a pretty wide 68 degrees for the Kronos.

我能证实所有这三款镜子的真实视角都是8.5度，表现视场DF和BPO是60度，Kronos是68度。

This thesis mainly discuss following issues, Theory and simple expressions for array covariance matrixes are derived when angular spread functions are symmetric distribution functions, i. e. the Uniform distribution, the Gauss distribution, the Laplace distribution and the Von Mises distribution, and a non-symmetric distribution function, i. e. the Gamma distribution. And the relation between the effective signal subspace and the array number, or and the nominal angle of the distributed source, the angular spread, the distributed functions, and the Signal-to-Noise Ratio is gained. The dimension of the effective signal subspace increases with increment of the array number. And it is more obvious to the non-symmetric distribution. The dimension of the effective signal subspace decreases with increment of the nominal angle. And the distributed source is equal to a point source as θ=π/2. The dimension of the effective signal subspace increases with increment of the angular spread.

本论文针对阵列信号处理中广泛存在的分布源现象，主要讨论了以下问题：推导了角度分布函数分别为对称的均匀分布、高斯分布、拉普拉斯分布、Von Mises分布和非对称的伽马分布时，分布源阵列接收信号协方差阵的严格模型和简化模型，得到了单个分布源的有效信号子空间随阵元数、分布源中心角、分布角、角度分布函数和信噪比的变化规律：随着阵元数的增加，对所有角度分布函数的有效信号子空间维数也随着增加，且非对称分布函数的有效信号子空间充满整个空间的可能性更大；随着分布源中心角逐步增加，有效信号子空间维数逐步减小，当θ=π/2时，等价于点源情形；随着分布源分布角逐渐加大，有效信号子空间维数也随之增加，直到有效信号子空间充满整个空间；随着信噪比的增加，有效信号子空间维数有一定程度的减少。

So the main study contents of this thesis are as follows: the load distribution pattern along the length beam and the cross beam in the place of node、 the appropriate matching rigidity of the length and cross beams in the action of same anchorage force and the affection pattern discuss on sloping surfaces dip angle、 beam rigidity 、 anchor-rope angle as well as the position of load which affect the load distribution ratio on length and cross beams. In the end it brings forward lattice beam internal force calculated method on the basis of double parameter groundsill model.

鉴于此，本文主要的研究内容是格构梁节点处荷载沿纵横梁的分配规律、同一锚固力作用下纵横梁合理的匹配刚度以及对格构梁纵横梁荷载分配比值可能存在影响的坡面倾角、梁刚度、锚索夹角、加载位置等因素的影响规律探讨，最后提出基于双参数地基模型的格构梁内力计算方法。

The law of refraction, discovered first empirically by Willebrord SNELL, then subsequently derived formally by Descartes and Fermat, states that sin r = K sin i, where i is called the angle of incidence, the angle between the incident ray and the normal to the refracting surface.

折射的轨律，首先被 Willebrord SNELL 靠经验发现，接着后来正式被笛卡尔和 Fermat 认定，规定 sin r = K sin i ，这里 i 被称作入射角，入射光线和法线到折射平面之间的夹角。

At the same time, some factors such as cohesive strength, internal friction angle, slope angle of slide plane, groundwater level and earthquake intensity are analyzed. Different sensitive degrees with assurance factor are obtained. The mathematical models are simulated for them. It supplies the theoretical basis for how to confirm stability of part of slope. This will offer some guidance for the practical engineering.

同时，通过研究粘聚力、内摩擦角、滑动面倾角、地下水位及地震烈度等影响因素对边坡安全系数的敏感性程度，得到了该边坡工程的主要影响因素，并通过岩体粘聚力、内摩擦角及地震烈度与边坡稳定性系数的关系曲线分别模拟出了它们的数学模型，对确定边坡某一具体位置的稳定性程度提供了理论基础，具有一定的实际指导意义。

The action point of limiting force on retaining structure is not always at 1/3 of the height of retaining structures, but varies with the friction angle δ between soil and retaining structures, the type of limiting state, the failure mode, the internal friction angle φ, and cohesion c of the soil, ranging from 1/5 to 2/3 of the height of retaining structures.

3土体极限荷载P〓的作用点位置不象Coulomb理论中假定的那样，总是作用在墙高的1／3处，而是与土体极限状态的类型、土体的破坏形式、墙土之间的摩擦角δ、土体的内摩擦角φ和粘聚力c有关系，在挡土结构物高度的1／5到2／3的范围内取值。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。