椭圆的

This method is an improvement of existing methods to construct nearly order elliptic curves using complex multiplication. To get elliptic curves with nearly prime orders, the time complexity of this method is O , but to get elliptic curves with prime orders, the time complexity arises to O .

该算法是现有利用复乘构造近乎素数阶椭圆曲线方法的改进，利用该算法构造近乎素数阶椭圆曲线的时间复杂性为O，同时，该算法可用于构造素数阶椭圆曲线，但时间复杂性上升为O。

Its security depends not only on the elliptic curve discrete logarithms but also on the choice of the elliptic curve and its system.

其安全性不仅依赖于椭圆曲线离散对数的分解难度，而且依赖于椭圆曲线的选取和椭圆曲线密码体制。

And then, a window-type novel x-ray crystal spectrometer was put forward based on the elliptically curved crystal analyzer. It was coupled to an x-ray CCD camera, and a set of system had been designed and constructed. The spectrograph is useful in the experiments of x-ray diagnostics, for example in x-ray lasers, inertial confinement fusion, laser-matter interaction, and so on.

本论文从X射线晶体衍射和椭圆自聚焦几何光学原理出发，剖析追究了椭圆型弯曲X射线晶体谱仪在实际应用中产生问题的根源，率先从技术上提出解决目前椭圆型弯曲X射线晶体谱仪存在问题的思路，论证了其相应实施方案的可行性。

Compared with Elliptic Curve Cryptosystems, Hyperelliptic Curve Cryptosystems has obvious security advantages , therefore the theory of HCC has caused the crypto circle's extensive attention in recent years.

与椭圆曲线密码体制相比，超椭圆曲线密码体制具有明显的安全性优势，因而，近几年来超椭圆曲线密码理论备受密码学界的重视。

Compared with Elliptic Curve Cryptosystems, Hyperelliptic Curve Cryptosystems has obvious security advantages , therefore the theory of HCC has caused the crypto circles extensive attention in recent years.

与椭圆曲线密码体制相比，超椭圆曲线密码体制具有明显的安全性优势，因而，近几年来超椭圆曲线密码理论备受密码学界的重视。

In the elliptic curve cryptosystem, the core operation is elliptic curve scalar multiplication, which is crucial to efficient implementation of elliptic curve cryptosystem.

在椭圆曲线密码体制中，核心运算就是椭圆曲线的标量乘运算，它是椭圆曲线密码体制快速实现的关键。

But the influence of interface dip is relatively small and can be omitted. A considerable declinational departure of the ellipse's center from the reflection point may be caused by the reflector's dip, and the deflection grows rapidly with the dip increasing.

界面倾角对椭圆大小和形状的影响相对微小可以忽略不计，但界面倾角却是影响椭圆中心位置偏离反射点程度的主要因素，倾角越大，椭圆中心在反射点下倾方向上偏离得越远。

Owing to the progressive accumulation of the ovalization of the tube cross-section during cyclic bending, the tubes buckle eventually.

从椭圆化－曲度的实验曲线中显示，在对称曲度循环弯曲负载时椭圆化会渐增且呈对称棘齿的变化，椭圆化会一直增加直到钢管发生皱曲。

It has been used to determine the real part and imaginary part of indices and thicknesses of thin layer synchronically.

光度法椭圆偏振光谱中椭圆旋向是不能直接确定的，从而不能确定椭偏参数Δ。这一定程度上有碍椭圆偏振光谱的应用。

Methods Neomycin was used to destroy guinea pig utricular hair cells in vitro.The culture in experimental groups was supplemented with bFGF.The culture in control group was not supplemented with bFGF.All utricles were observed by scanning electronic microscope,and the number of survival utricular hair cells was accounted.

采用离体的豚鼠椭圆囊培养法，对照组为普通前庭培养液培养，实验组按培养液中含和不含bFGF分组，用新霉素造成各实验组培养的椭圆囊毛细胞损伤，各组椭圆囊均行扫描电镜检查并行毛细胞计数。

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。