1.
The Chinese did not in any way remain satisfied with this rough value π.
中国人对这个不精确的π值决没有感到满足。
2.
Calculate Pi(π) with High Accuracy by C++ and Assembly Language;
用嵌入了汇编语言的C++进行高精度π值计算
3.
Gives the number 3.14159..., an approximation of the mathematical constant pi.
给出数学常数π的近似值，即数字3.14159...。
4.
Formulas truth function degree generated based on Π system
Π系统中公式的真值函数及真度分布
5.
Numerical study on the mechanism of torsional flutter for Π-shaped section
Π形板梁分离流扭转颤振机理数值研究
6.
Partial Wave Analysis of J/ψ→γπ～+π～-π～+π～-;
J/ψ→γπ～+π～-π～+π～-的分波振幅分析
7.
The exploratory experiment teaching about calculation of π based on the elementary geometry method is researched.
探讨了基于初等几何方法的圆周率π的数值计算的探索数学实验教学。
8.
Synthesis and Properties of D-π-A-π-D and D-π-A-π-A Photoelectrical Materials Based on Stilbene Derivatives;
D-π-A-π-D和D-π-A-π-A均二苯乙烯类有机光电材料的合成及性能研究
9.
The Stability of π-π Conjugated Molecules and Their Reactivity of Addition Reaction
π-π共轭的稳定性与加成反应活性
10.
Study of J/Ψ→γπ~+π~-π~0;
J/Ψ→γπ~+π~-π~0衰变的研究
11.
π-Restrition, π-Induction, Kernels and Centers of Characters;
特征标的π-限制与π-诱导、核与中心
12.
The Color and Conjugation π→π~* Transition of Organic Compound;
有机化合物的颜色与共轭π→π~*跃迁
13.
General π-Frattini Subgroups of π-Solvable Group;
π-可解群的广义π-Frattini子群
14.
π-subcoalgebra of Hopf π-coalgebra
Hopf π-余代数的π-子余代数
15.
On π-twisted smash coproducts and π-L-R smash coproducts
π-twisted smash余积与π-L-Rsmash余积
16.
Hopf π-coalgebra and unilateral π-coideal
Hopf π-余代数与单侧π-余理想
17.
The Influences of Hydrogen-Bond and π-π Cooperative Effect on Aggregating Properties of Organic π-Conjugated Oligomers
氢键和π-π协同效应对有机π-共轭齐聚物聚集行为的调控
18.
PIGMI (Pion Generator for Medical Irradiation)
医疗照射π介子发生器