| 1. | He proved the existence of parallel lines .
他证明了平行线的存在性。 |
| 2. | It is just the sequential form of the existence of least upper bounds .
这正好是上确界存在性的序列形式。 |
| 3. | He did not grant independent existence to the non-euclidean geometries .
他不承认非欧几里德几何的独立存在性。 |
| 4. | Mathematics had to free itself of a narrow technique for establishing existence .
数学必须在证明存在性的问题上不受狭隘的几何方法的束缚。 |
| 5. | Chapter 4, omitting the section on the existence of the integral but including improper integrals .
第四章略去了关于积分存在性那一节，且包括广义积分。 |
| 6. | On existence of optimization solution of truss structure
桁架优化解存在性的研究 |
| 7. | Infinitely many solutions for p - laplacian - like equations
方程的无穷多解的存在性 |
| 8. | Existence of solutions for quasilinear elliptic equations
拟线性方程解的存在性 |
| 9. | Therefore , we obtain existence of local solution
因此，可获得局部解的存在性。 |
| 10. | Limit cycle problem for a non - li 233 ; nard type cubic system
型方程周期解的存在性 |
