所得

The curvature of a curve; the magnitude of the derivative of its unit tangent vector with respect to distance on the curve:.

曲线的曲率；为单位切向量对距离取导数所得向量的大小

DT/ds| The curvature of a curve; the magnitude of the derivative of its unit tangent vector with respect to distance on the curve:|dT/ds

曲线的曲率；为单位切向量对距离取导数所得向量的大小

Some will be tempted to cushion the pain of higher oil prices by cutting oil taxes or drawing on the Strategic Petroleum Reserves.

随着在全球经济放慢增长步伐的同时石油价格继续在不断地上涨，从过去六个月里所得到的痛苦的事实是，油价上涨是走向一种新现实过程中正在进行的调整过程的一个组成部分。

The disadvantage of ammonia and carbon dioxide- cyanamide method is the operation condition of this technology has very high request. Our team compares urea-cyanamide method with ammonia and carbon dioxide- cyanamide method, and then we get the conclusion: urea-cyanamide method is better than ammonia and carbon dioxide- cyanamide method.

为了比较两种新工艺的优劣，本课题组将两种工艺所得的收率，对环境的影响，催化剂，工艺条件，原料成本进行了比较，得出尿素-氰胺法优于氨气、二氧化碳-氰胺法的结论。

The obtained sodium cyanate′s purity was analyzed through gravimetric analysis and the characterization was made by X-ray diffraction.

用重量法分析了所得氰酸钠的纯度，并用X射线衍射对其结构进行了表征。

Article Name The preparation of high purity sodium cyanate by liquid-solid chemical reaction method

所得氰酸钠的XRD衍射图谱与氰酸钠标准图谱完全一致。英文翻译

In this paper, new classes of linear block codes over finite fields of the algebraicinteger ring of quadratic number fields Qd~(1/2 modulo irreducible elements with norm p or p~2 are presented. These codes can correct one error which takes from the cyclic subgroup of the multiplicative group of the finite fields. The results presented in this paper extend the corresponding results of previous papers.

在处理适用于二维信号的线性分组码时，我们考虑类数为1的有理数域二次扩域Qd~(1/2的代数整数环，利用范数为p或p~2的不可约元构造有限域，给出剩余类域的一组完全陪集代表元系，从而构造出一类有限域上的线性分组码，当错误取值于有限域乘法群的一个循环子群时，所得到的适用于二维信号的线性分组码可以纠单个错，推广了文[14-16]的结果。

The static natural frequencies and dynamic frequencies (under 3000rpm) are calculated by the finite element method and cyclic symmetry technique. The rotating vibration behaviors of the two models are compared. Different vibration characteristics between the two models are discussed. Geometry mismatch in a turbine blade root, which arose in manufacturing process or caused by wearing out during service, leads to contact conditions changed in fir-tree attachments. As a result, shifting of the fundamental frequencies and redistribution of stress in the blade base possibly cause failure of the blade.

在叶片—轮盘耦合系统振动研究方面，建立了带围带的叶片振动计算模型和带围带的叶片—轮盘耦合系统振动计算模型，考虑旋转离心力作用，采用波传播技术，对两种模型分别进行了整圈模态分析，得到了某汽轮机叶片模型和叶片—轮盘耦合模型在0转速和工作转速(3000rpm)下的振动模态，并对所得结果进行分析比较，讨论了整圈叶片振动模态与叶片—轮盘耦合振动模态的区别。

In this paper, a performance index, which is used to evaluate the operating uniformity of multi-cyclinder engine, is presented based on the fact that the fluctuation of gas pressure in the expansion stroke cyclinder leads to the fluctuation of instantaneous angular velocity. The value IP is propotional to the fluctuation of instantaneous angular acceleration. Fuzzy diagnostic index for misfire fault is introduced and investigated also in this paper.

根据多缸发动机曲轴瞬时转速波动不均匀性主要由缸内循环气体压力波动不均匀性引起这一基本事实，以曲轴瞬时转速的实时检测为基础，在一个工作循环内按着火顺序将作功冲程中瞬时角加速度的波动作为评定各缸工作不均匀性的指标，将所得IP模糊化用于多缸机的故障诊断也作了初步的探讨。

Their catalytic performances for the oxidation of cyclohexane in water under mild condition were also studied.

应用所得到的模拟酶在温和条件下以水作为溶剂、叔丁基过氧化氢为氧化剂，液相中催化环己烷的选择氧化反应。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。