椭圆的

By means of the dynamics analysis , the center of the vibrating force of the shaker is determined, which is proved exclusive.

对新研制的双激振电动机驱动平动椭圆振动筛做了理论研究，建立了自同步平动椭圆筛的力学模型；通过对该型筛的动力学分析，确定了平动椭圆筛力心，并用解析法证明了力心的唯一性。

Researched asymmetric key encryption algorithm basic idea , as well as elliptic curve encipher fundamentals , explorated investigation Elliptic Curve Encryption algorithm performance , corrected in some respects about improved elliptic curve encryption algorithm.

研究非对称密钥加密算法的基本思想，以及椭圆曲线加密原理。探讨了椭圆曲线加密算法的性能，对改进的椭圆曲线加密算法在某些方面进行了修正。

In 1989, Neal Koblitz proposed the hyperelliptic curve cryptosystems as a natural generalization of ECC. HCC is based on the discrete logarithm problem on the Jacobian of hyperelliptic curves over finite fields.

作为椭圆曲线的一个推广，Neal Koblitz在1989年提出了超椭圆曲线密码体制，它是基于有限域上超椭圆曲线的Jacobian上的离散对数问题。D。

In 1989, Neal Koblitz proposed the hyperelliptic curve cryptosystems as anatural generalization of ECC. HCC is based on the discrete logarithm problem on theJacobian of hyperelliptic curves over finite fields.

作为椭圆曲线的一个推广，Neal Koblitz在1989年提出了超椭圆曲线密码体制，它是基于有限域上超椭圆曲线的Jacobian上的离散对数问题。D。

The basis of building secure hyperelliptic curve cryptosystems is constructing secure hyperelliptic curve over finite field, therefore firstly must select an hyperelliptic curve suitable to build cryptosystem.

建立有限域上安全超椭圆曲线密码体制的基础是构造有限域上安全的超椭圆曲线，因而应当首先选择适于建立密码体制的超椭圆曲线。

The principle and measurement method of elliptical polarized light has been introduced simply in this article.

本文简要介绍了椭圆偏振光产生的原理及检测方法，并提出了一种直观、简易地测定椭圆形状的方法，有助于学生加强对椭圆偏振实验的理解。

In which the second order degenerate equations associated with square sum operators of Hormander vector fields are the most important classes. People are used to calling them subelliptic operators because they have properties similar to that of classical Laplacian.

由于该算子具有与经典Laplace算子类似的次椭圆性质，人们习惯上把由向量场构成的二阶线性及非线性算子通称为次椭圆算子，相应的方程称为次椭圆方程。

As for the ovalization-curvature curve, it can be observed that the ovalization increases in a ratcheting manner with the number of the bending cycle. When the magnitude of the ovalization reaches a critical value, the tube buckles.

至於在椭圆化－曲度的曲线图中显示，椭圆化会随著循环弯曲的圈数渐增且呈现对称棘齿的变化，当椭圆化值增加到某一极限时，薄壁圆管便会发生皱曲破坏。

The content of Fe in lagenal otoliths was not significantly different from that in utricular otoliths and was even lower than that in saccular otoliths. The content of Co in lagenal otoliths was lower than that in saccular otoliths and higher than that in utricular otoliths. The content of Ni in lagenal otoliths was not significantly different from that in saccular otoliths and was higher than that in utricular otoliths.

瓶状囊耳石中Fe的含量与椭圆囊耳石相比无显著性差异且低于球囊耳石；瓶状囊耳石中Co的含量低于球囊耳石，但高于椭圆囊耳石；瓶状囊耳石中Ni的含量与球囊相比无显著性差异，但高于椭圆囊耳石。

The content of Fe in lagenal otoliths was not significantly different from that in utricular otoliths and was even slightly lower than that in saccular otoliths. The content of Co in lagenal otoliths was slightly lower than that in saccular otoliths and slightly higher than that in utricular otoliths. The content of Ni in lagenal otoliths was not significantly different from that in saccular otoliths and was slightly higher than that in utricular otoliths.

瓶状囊耳石中Fe的含量与椭圆囊耳石相比无显著性差异且略低于球囊耳石；瓶状囊耳石中Co的含量略低于球囊耳石，但略高于椭圆囊耳石；瓶状囊耳石中Ni的含量与球囊相比无显著性差异，但略高于椭圆囊耳石。

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。