难获得的

In architectonics, the calculation of rectangular plate on elastic foundation, in common, is used by the finite element method and chart .

在建筑结构设计中的局部均布荷载作用下非均匀弹性地基上矩形板的计算一般采用有限元法和图表，在理论上很难获得一般性的解析解。

However, it is difficult to obtain a large number of live cytoplasm in present study.

背景：细胞质在细胞分化过程中起着决定作用，但目前的实验很难获得大量的、有活性的胞质体。

Adsorption equilibrium data of individual ethanethiol and thiophene were both properly fitted with Langmuir model. Errors between calculation and experiment data were 5. 64% and 2. 89%.respectively.

吸附平衡数据是放大设计和确定吸附操作条件的基础数据，但是吸附平衡数据尤其是多组分物系的吸附平衡数据较难获得。

In US discussions of health reform, there has been an overconcentration on the Canadian system—a system of public health care that makes it very hard to have private medical care—whereas in Western Europe the national health services provide care for all but also allow, in addition to state coverage, private practice and private health insurance, for those who have the money and want to spend it this way.

在美国对健康改革的讨论中，人们过度地关注加拿大体制（在这种公共健康护理体制中，人们将很难获得私人医疗护理）；然而，西欧的国家健康服务既为全民提供护理，而在国家保险之外，也允许那些有钱并有此意愿者进行私人治疗，购买私人健康保险。

Such as insurance against steeling and contingency which are easy to get.

针对偷盗和意外伤害contingency的保险契约通常都可以买到，但是防御技术过时的保险契约却很难获得。

If it is sandier, it will be harder for the bottoms of the roots to get as much water, as it will not soak through, but will stay on the surface of the soil.

如果是桑迪耶，这将是更难底部的根源，以获得多水，因为它会不会浸泡通过，但将留在表面的土壤。

Applying analytical method,the exact transfer matrix of circular arches with constant cross_section is derived.

由于结构本身的复杂性，对于变截面圆拱的自由振动很难获得解析解。

In this highly state-controlled capital market, private enterprises find it extremely difficult to obtain approvals to go public.

在这个由政府高度控制的资本市场中，私人公司很难获得上市的许可。

However, people regard whistle blowers as troublemakers and place little trust in them.

但是，这种告密的人经常被视为麻烦制造者，很难获得别人的信任。

Cubic Cr〓Si nanorods was prepared via a co-reduction route by the reaction of metallic magnesium with anhydrous chromium trichloride and silicon tetrachloride at 600℃.

金属硅化物在传统上一般采用高温反应的方法来制备，但很难获得纳米级的材料。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。