滚转

Based on the analysis of the stability of the nature tailless UAV, The control system of the tailless UAV is designed by using the classical control method and a time-based method is used that can tune up control law parameters automatically by virtue of optimizing.

为了使所设计的控制器参数较优，本文以滚转保持与控制模态为例，采用了一种带有时域约束的优化控制方法设计出这些回路的基本控制律参数，并针对各控制模态在频域内进行稳定性分析，证实了该调参方法在工程上可以得到很好的应用； 4。

Comparisons between calculated results and experimental data are presented,the variations of module of the roll toque coefficients with flight parameters are analyzed.

因此在迎风子午面两侧的烧蚀引射率和摩擦力不再对称，这是产生烧蚀滞后滚转力矩的主要原因。

The total degree of the roll is based solely on the direction of the takeoff.

滚转的总度数完全取决于起飞时的方向。

O my God, make them like a tumbleweed, Like stubble before the wind.

83：13 我的神阿，求你叫他们像随风滚转的草，像风前的碎楷。

The two-cycle variation in side force per 360° of roll under small bleed momentum is gradually evolved to one-cycle variation under large bleed momentum.

模型上的侧向力随模型滚转从小吹气量下的双周期变化逐渐演化成为大吹气量下的单周期变化，利用该渐变规律可以实现对非对称背涡流场的主动控制，提出了微量吹气扰动控制概念。

The intensity and direction of the geomagnetism vector is a function of geographical position.

地磁场的强度和方向是地理位置的函数，可通过对地磁矢量的探测确定稳定飞行的弹体在空中的滚转姿态。

The intensity and direction of the geomagnetism vector is a function of geography position.

地磁场的强度和方向是地理位置的函数，可通过对地磁矢量的探测确定稳定飞行的飞行体在空中的滚转姿态。

Geotropic nystagmus was seen in 25 patients in Dix-Hallpike test and roll test, while apogeotropic nystagmus in 13 patients. The direction of nystagmus could not be ascertained clinically in 3 patients and the direction of nystagmus was the same during right and left positional test in 5 patients.

35例患者通过两种试验诱发出水平眼震，11例患者仅通过滚转试验诱发出水平眼震。25例患者眼震方向向地，13例患者眼震方向背地， 3例患者眼震方向不固定， 5例患者各种手法诱发出同一方向的眼震。29例患者在双侧手法中出现眼震， 17例患者在一侧手法中出现眼震。

It also spins and tumbles very quickly.

飞机也能迅速滚转翻腾。

Aiming at the time-varying,non-linear and coupling features of rolling and yawing dual channel of semi-active homing missile,and the different requirements of control system,this paper introduces two self-adaptive control concepts.

针对半主动寻的导弹滚转和偏航双通道具有时变、非线性、耦合的特点，以及控制系统性能的不同要求，采用两种自适应控制方案。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。