1.
Qeneral 6R Robot Inverse Solution Based on Double Quaternion and Groebner Base
基于倍四元数和Groebner基的6R机械手的位置反解
2.
A number four times as great as another.
四倍量是另一个四倍的数量
3.
Twelve is the triple of four.
十二是四的三倍数。
4.
The newly broadened square id four times the size of the previous one.
倍数表达法，新扩建的广场是未扩建时的四倍大。
5.
Meiotic FISHs in Hybrids Between Tetraploid Cultivars and Diploid Wild Species of Gossypium L.;
四倍体栽培棉×二倍体野生棉减数分裂的FISH研究
6.
Meiosis of pollen mother cells in autotetraploid radish
同源四倍体萝卜花粉母细胞减数分裂
7.
Infrared Frequency Doubles Parameters and Element Process of CdSe Crystal
CdSe晶体倍频光学参数及元件加工研究
8.
quaternion Grassmann manifold
四元数格拉斯曼流形
9.
Gauss Ring, Quaternions and RSA Arithmetic;
Gauss环、四元数体与RSA算法
10.
The Sex Chromosome Act in the Meiotic Division of ZZWW 4n FemaleSilkworm(Bombyx mori)
ZZWW型四倍体雌蚕减数分裂中的性染色体行为
11.
method of multiple stimuli
倍数刺激法 倍数刺激法
12.
Beijing Capital Tourism shares, which have doubled in price since the start of this year, closed at13.86 yuan apiece Thursday.
首旅股份股票周四收于13.86元，自今年初以来已经上涨了一倍。
13.
The gross value of imports and exports from bonded areas was 490 million US dollars, increasing 1.3 times.
保税区进出口总值为四点九亿美元，增长一点三倍。
14.
Molecular Cytogenetic Study of the Tri-species Hybrid Involving Maize, Tripsacum Dactyloides L. and Zea Perennis
玉米、摩擦禾、四倍体多年生类玉米三元杂种的分子细胞遗传学研究
15.
Diploid, triploid, tetraploid, pentaploid and hexaploid hybrid plants have been recovered from protoplast fusion, among which the tetraploid ones accounted for almost90%.
这些体细胞杂种有二倍体、倍体、倍体、倍体和六倍体,但主要是四倍体。
16.
Study of Some Problems on Quaternion Algebras and Analysis;
关于四元数代数与分析若干问题研究
17.
Maizar Project and Algebra Structure of the Quaternion Numbers;
Mizar语言系统与四元数的代数结构
18.
Study on Some Matrices Problems over Real Quaternion Division Algebra
四元数体上代数的若干矩阵问题研究