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We also know that ArcSin is an odd function and therefore the second order term B*X*X is of no use in the approximation.

我们也知道 ArcSin 是一个奇函数，因此二次项 B*X*X 在近似中没有用。

X .. Open interval with lower bound x

x 。。||开放的间隔区间，下界是 x

Let X be a finite set and let be a family of distinct subsets of X; then the ordered pair H= is called a hypergraph.

设 X 是一个有限集合且ξ是 X 的相异部分集合所形成的集合族；则序对 H =称为一个超图形。

Methods: Injured patients of cervical spine was cayyied on X-ray inspection.,then according to the result of ADI and LADS ,next to CT or MRI inspection ,and that was to guide clinical diagonosis and treatment.To observe atlanto-dental interval (anterior arch of atlas posterior border to odontoid process anterior border) and odontoid process caster(included angle between axis of ordinate of odontoid process and axis of ordinate of odontoid vertebra) on the X-ray lateral projection.

对有颈部外伤史的病人常规行X线检查，然后根据寰齿间距和齿突侧块间隙的结果，行下一步CT检查或者MRI检查，指导临床治疗方法的选择。X线侧位片观察寰齿前间隙(为寰椎前弓后缘与齿突前缘距离)，齿状突后倾角(齿突纵轴与枢椎体纵轴的夹角)；开口正位片上测定齿突侧块间隙。

An analytic solution of kinematic model was obtained via Lie transformation group. It shows that the velocity of particles flow is maximum when x=0. Through locating the maximum particles velocity distributing line and taking the line as the origin line of x coordinates, the modified kinematic model could simulate the eccentric discharging well.

通过Lie变换群得到"运动模型"的解析解，发现x=0时颗粒的垂直速度达到最大值，由此在确定颗粒最大速度分布线的基础上移动坐标使该线上x值均为0，对"运动模型"进行了修正，可以反映壁面对颗粒运动的影响，所得计算结果与实验测定吻合得很好。

Someone was quite serious about their collecting and assembled all of the orthoclase crystal forms typically found at this famous Colorado locality. 14.7 x 10.8 x 4.0 cm

看来有人非常认真地进行收藏，收集到了科罗拉多这一著名产地出产的所有典型晶形的正长石标本。14.7 x 10.8 x 4.0 cm

C. x-ray findings: x-ray findings are consistent with the histopathologic stage of degeneration. early changes consist of mild joint space narrowing and minimal osteophyte formation. of the periphery of involved joints.

c.x 线表现：x线所见与组织病理的变性期一致，早期变化有轻度关节间隙窄狭窄，受累关节周围有很轻的骨赘形成。

Disclosed is a leaky-wave dual polarized slot type antenna, including: first and second feeding circuit sections comprised of N-first strip lines and N-second strip lines with a loop every first period along the X-axis on the first dielectric layer and a second period along the Y-axis, in which the N-first strip lines and the N-second strip lines are parallel to each other being alternate, and each length of Ls1 and Ls2 for the first period satisfies the equation of , first and second multi-channel dividers formed at once and the other sides of the first dielectric layer, to connect the N-first strip lines and the N-second strip lines parallel with each other; and first and second central ports formed in the opposite direction of the cavity, each of the feeding circuit sections being connected to the first and second multi-channel dividers; and first and second slot sections being formed by patterning the second shielding layer, in which M-first and M-second slots are arrayed along the direction of the X-axis and each of the first and second slots forms N-row first and N-row second slot arrays, respectively, which cross the first and second strip lines for each, the first slot and the second slot being orthogonal to each other.

公开了一种漏泄波双偏振槽型天线，包括：第一和第二馈电回路部分，其具有沿着X轴在第一介电层每第一周期以及沿着Y轴的第二周期形成具有环路的N第一带状线和N第二带状线，其中N第一带状线和N第二带状线彼此平行并交替，并且对第一周期的各Ls1和Ls2的长度满足等式，第一和第二多通道分配器寻形成在第一介电层的一侧和另外一侧上，以连接彼此平行的N第一带状线和N第二带状线；以及形成在腔的相对方向中的第一和第二中心端口，每个馈电回路部分连接到第一和第二多通道分配器；以及第一和第二槽部分，所述第一和第二槽部分通过对第二屏蔽层形成模式而形成，其中M第一和M第二槽沿着X轴的方向安置，各第一和第二槽分别形成N行第一和N行第二槽阵列，其对每个横过第一和第二带状线，第一槽和第二槽彼此正交。

Size: 16.9" x 11" x 16.9 - Monogram Mini Lin Canvas, polyester and cotton lining, cross grained calfskin trim - Shiny golden brass pieces - Zipper closure - 1 interior patch pocket, 1 phone pocket - Carried on the shoulder - Adjustable 3 holes leather strap PRODUCT ID: M95619 这款轻盈的单肩包以Monogram Mini Lin

帆布制成，融舒适精美于一体，散发出一种随意的都市时尚风韵。尺寸： 16.9" x 11" x 16.9 - Monogram Mini Lin帆布，涤纶和棉质衬里，交织条纹小牛皮饰边-抛光金色黄铜配件-拉链开合- 1个内贴袋，1个手机袋-肩背- 3孔可调节皮带参考： M95619

X-ray is a stream of such photons, used for their penetrating power in radiography, radiology, radiotherapy, and scientific research.

X光照片是X射线一束X光射线，可利用其穿透能力，应用到放射线照相术、放射学和放射疗法以及科学研究方面。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。