俯角

本文首先讨论汽车平视显示器（HUD）中，显示图象的感觉和俯角之间的关系。

First this paper discusses the relation between perception of displayed image and angle of depression in automotive Head_Up Displays ( HUDs ) .

现行国标GB5768-1999中对路上交通标志设置俯角没有详细规定，也缺少相关应用范例。

Traffic sign 's depression angle setting above road has not been regulated in detail by GB5768-1999 , and there is no pertinent applied example .

进而指出：如果在实际HUD中俯角过小，会产生对显示信息误解的严重问题。

Second , we can point out a new serious problem of misconception of displayed information , is the angle if very small in practical HUDs .

计算俯视雷达临界俯角的经验公式

The empirical formula for calculation critical depression angle of down-looking radar

星座的俯角降到了地平线以下。

The depression of the constellation fell below the horizon .

但须注意，不应用极度的俯角或仰角。

But should note that no application of extreme bow Angle or elevation .

低层大气折射对下视雷达临界俯角的影响

The influence of critical angle on down looking radar by lower atmospheric refraction

大俯角开采的研究与实践

Study and practice in large dipping angle mining

展开后的太阳能电池板面与探测器轨道轴成30度俯角。

After deployment , the solar panel plane is canted by30 ? to the spacecraft pitch axis .

俯冲角（俯角）大（小）了，带点杆。

Dive angle ( pitch-down angle ) high ( low ) . Apply a little back stick .

为了对地面目标进行有效测量，必须事先求得临界俯角。

In order to detect the target effectively , the critical depression angle must be obtained in advance .

俯视雷达测量地面目标时会受到临界俯角的限制。

A down-looking radar was limited by a critical depression angle when it detects the target on the ground .

由于低层大气的折射效应，俯视雷达的俯角和入射角将随气象条件而变化。

Owing to refractive effect in lower atmospheric , the depression and incident angles of down looking radar vary with weather conditions .

下视雷达的射线路径与临界视在俯角有关，而临界视在俯角又与低层大气折射剖面有关。

The path of radio bears relation to the critical depression angle on down looking radar , which bears relation to the atmospheric profile lower atmospheric refraction .

大陆俯冲带的深部流体及变质化学地球动力学&以苏鲁超高压变质带为例俯冲角（俯角）大（小）了，带点杆。

Fluids from the Deeply Continental Subduction Zone and the Metamorphic Chemical Geodynamics Dive angle ( pitch-down angle ) high ( low ) . Apply a little back stick .

摘要采用文献资料、教学实验、数理统计等方法，对跳远起跳技术教学方法进行研究，提出了运用目标“俯角板起跳”练习的教学新方法。

Applying literature , teaching experiments , statistical methods for the long jump take-off technology teaching , this essay the applies " bow angle board " to long jump take-off technology teaching .

但她终于鼓起勇气，拉开帐子，俯到枕头上，瞧着瓦朗蒂娜。俯冲角（俯角）大（小）了，带点杆。

At length she rallied , drew aside the curtain , and leaning over the pillow gazed intently on Valentine . Dive angle ( pitch-down angle ) high ( low ) . Apply a little back stick .

并据此采用步格和俯角15°斜板等手段，改善背越式弧线助跑技术，为提高运动成绩和进一步加深对技术动作特点的理解，提供理论和实践参考。

On this basis , by applying step checkers and inclined boards with a 15 ° angle of depression the skill of the curving approach is improved so as to provide theoretical and practical reference for improving athletic performances and further deepening the understanding of the curving approach skill .