角条件

In allusion to the problems existing in using medium pressure air as drilling fluid under the conditions of breccia formed by small structural action, loose coal layer and unstable formations, new type of drilling tools and bits was designed. The mechanism of cutting removal by air media was stated and analyzed.

在针对小构造带形成的角砾岩、松散煤层、不稳定地层等瓦斯地质条件下，采用中压风作为冲洗介质进行钻探中所存在的问题，重新设计了新型的钻具级配、正反向一体化钻头等，并且对风介质的排渣机理进行了阐述和分析。

Equivalent circuit is deduced, and then experiments on photovoltaic cell are relative...

最后对50WP多晶硅光伏电池在不同情况下的运行特性进行了实验研究，比较光伏电池在不同倾角下、不同负载及不同气温条件下对太阳能光伏发电系统发电效率的影响，实验数据确定最佳方位角和倾斜角，并分析了阴影对光伏电池的影响，数据表明当阴影遮盖面积超过50%后光伏电池输出功率降到原来的1%。

This paper describes the design of a BTT missile autopilot by means of the classical control theory, and the guidance logic using the proportional guidance law without any constraint in the maximum roll angle of the missile.

本文先用古典控制理论设计BTT导弹自动驾驶仪，采用比例导引规律，在导弹最大滚动角φ_不作限制的条件下设计制导逻辑。

The system can automatically seek north when the vehicle is immobile. And the time consumption is no more than 5.5 min. Besides, the system can keep azimuth angle and provide tilt angle and pitch angle of the vehicle.

本系统可以在车载条件下，停车完成自动寻北，寻北时间小于 5.5min；本系统还具有在机动时进行方位保持、实时提供载体倾斜角和俯仰角等功能。

Cascade internal flow field is calculated and analysed based upon NACA series blade profile with different running incidence.

戴韧应用有限元方法求解不可压黏性流动N-S耦合方程，对NACA叶型的叶栅在不同冲角的条件下，叶栅内部的流动作了较为完整的计算分析。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。