角单位

The argument finds the angle of the 4- vector quaternion from the unit scalar i.e.

辐角函数可找出一4-向量四元数偏离单位纯量(即：1)之角度。

The orientation-singularity expression of the Stewart platform is deduced by using unit quaternion which can avoid singularity when using Euler angles to represent the orientation of rigid body, and then the algorithm of orientation-workspace of the manipulator at a certain position is proposed.

基于单位四元数描述的刚体姿态，避免了欧拉角等描述刚体姿态的奇异性问题，推导出Stewart机构处于给定位置时的姿态奇异解析表达式，并提出了该机构处于给定位置时的姿态工作空间算法，通过计算机仿真给出该机构处于一给定位置时姿态奇异轨迹和姿态工作空间的三维可视化描述。

As the inserting angle increases, the reinforced efficiency of the unit volume fraction of the pins to the intensity and modulus of the X-...

随着植入角的增加，单位体积分数的Pin对X-cor夹层结构的强度和模量的增强效率均提高；不同直径Pin对X-cor夹层结构影响不同，大直径Pin对X-cor夹层结构强度增强效率高；小直径Pin对X-cor夹层结构模量增强效率高。

Key units to be protected Province: Xianxian the "zhou ya fu 's Tomb","Gao Graves," thetao cheng qu "Bowen Tower,""kong ying da 's Tomb,""Security Bridge", thegu cheng xian "Qinglin Temple Pagoda" Shenzhen City, the "Portrait Monument since Ma","big business Han Feng","meaning deep billion state surplus warehouse," thezao qiang xian "Dong Zhongshu stone", Anping County, the "Eastern Han tomb murals,"" West Zhaizi tomb "Jizhou city," the tomb mound,"" Jizhou the Old City site,"" Han de head "," North Sai Stone ", the" double-mound tomb "wu yi County"窦shi Castle "and" angle of Han."

省重点文物保护单位：景县的&周亚夫墓&、&高氏墓群&，桃城区的&宝云塔&、&孔颖达墓&、&安济桥&，故城县的&庆林寺塔&，深州市的&马君起造像碑&、&大冯营汉墓&、&深州盈亿义仓&，枣强县的&董仲舒石像&，安平县的&东汉壁画墓&、&西寨子古墓&，冀州市的&后冢墓&、&冀州旧城址&、&西元头汉墓&、&西堤北石塔&、&双冢汉墓&，武邑县的&窦氏青山&和&中角汉墓&。

In recommended tightening torque for stainless steel and alloy steel socket set screws, which screw requires greater torque in inch-lbs?

对不锈钢和合金钢制内六角紧定螺钉推荐的拧紧扭矩，哪个螺钉需要单位英寸-磅更大的扭矩？

A unit of astronomical length based on the distance from Earth at which stellar parallax is one second of arc and equal to 3.258 light-years, 3.08'×03 kilometers, or .98 × 0 3 miles.

秒差距：天文学自地球起的距离单位，星视差为角秒，等于3.258光年，3.08'×03公里，或。98×0 3英里

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。