Many thousands of hybrid combinations must be tested for each new hybrid variety released to the public . 在每个新的杂交种向群众推广以前，要对成千的杂交组合做试验。
In dealing with crystals we must generalize these latter equations so as to take account of anisotropy . 研究晶体时，必须推广这后一个方程组，以便将各向异性考虑在内。
It was this concept that riemann generalized, thereby opening up new vistas in non-euclidean geometry . 这个概念嗣后为Riemann所推广，从而在非欧几里德几何学中开辟了新前景。
For simplicity, let the plasma have only two species: ions and electron; extension to more species is trivial . 为简单起见，假定等离子体只有两种：离子和电子，推广到更多种是不难的。
Extension is still concerned with the traditional home economics program, but the emphasis here, too, has shifted . 推广工作仍然是按照传统的家庭经济计划进行的，但其侧重点也发生了变化。
The finite-element method can be regarded as an extension of the displacement method to two-and-three-dimensional continuum problem . 有限单元法可以看作是位移法对二维和三维连续体问题的推广。
The university extension specialists were able to customize their analysis for thousands of producers effectively and efficiently . 大学的推广专家能够有力地和有效地为千千万万个生产者提供分析。
In spite of efforts to help the small farmer, extension is serving a smaller and smaller group of successful farmers . 尽管推广局在尽力帮助小农，实际上却是在为一个越来越小的成功的农民集团服务。
The analysis by the stiffness method will now be performed for a single-storey structure and then extended to a multistorey building . 现在可以借刚度法完成单层结构的分析，然后推广到多层建筑物。
A very satisfactory answer can be given in terms of the appropriate analytic generalization of the algebraic concept of nilpotence . 将代数学中的幂零元概念作适当的解析学上的推广，可以绘出一个很满意回答。
