The physical ideas are the basic element of physical knowledge, the base of physics and is the keystone and difficulty of physical teaching.
物理概念是组成物理知识的基本元素，是物理学的基础，也是高中物理教学的重点、难点。
The policy is a key element of David Cameron's "Big Society", but suffers from the same difficulty as the overall project: pushing through devolution in a time of austerity is tricky.
这一政策是大卫•卡梅隆“大社会”中的关键一环，但却于整个项目面临着相同的困难：在一个紧缩的时代，向下放权是困难的。
The major difficulty is caused by the deletion of an element that is referenced from a dependent package.
主要困难是由删除依赖包所引用的元素导致的。
Adhering is a core technique and main difficulty of wood-based panel production, and adhesive is a critical element in the processing of adhering.
胶合是目前人造板生产的核心技术和难点，胶粘剂是胶合过程成败的关键因素。
The system operating higher frequency is getting worse, because of the smaller space of the grid of radiating element and the difficulty of arrangement cables.
对于工作于较高频率的系统尤其如此，因为其单元栅格的物理空间相对较小，使得电缆布线非常困难。
On account of the difficulty of evaluating the nearly singular integrals in boundary element method (BEM), the application range of BEM is reduced in engineering for a long time.
边界元法中存在拟奇异积分计算难题，它一直限制着边界元法在工程中的应用范围。
This method conquer the difficulty of the huge numerical computation of the traditional finite element method and an analytical analysis method of stochastic structure analysis is formed.
这样一来克服了传统的有限元数值方法计算量大的困难，确立了随机梁结构分析的一种解析方法。
The application range of boundary element method (BEM) is reduced in engineering for a long time due to the difficulty of evaluation of the nearly singular integrals.
边界元法中存在的几乎奇异积分的难题，一直限制着其在工程中的应用范围。
Secondly, due to the difficulty of the analytical method in treating non-uniform in-situ stresses, finite element method is used instead.
其次，采用有限元方法，研究了非均匀地应力条件下蠕变地层中套管的载荷。
The changing of a vague difficulty into a specific, concrete form is a very essential element in thinking.
我永远会去做一些我还没完全准备好能做的事，我认为那是让人成长的方式。
The changing of a vague difficulty into a specific, concrete form is a very essential element in thinking.
我永远会去做一些我还没完全准备好能做的事，我认为那是让人成长的方式。
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