查询词典 cast iron

The valence electron structure of medium chrome cast iron matrix is set up and the effect of Si on medium-temperature phase transformation is analyzed by using empirical electron theory of solids and molecules.

此文建立了290Cr8Si2中铬铸铁基体的价电子结构，运用固体与分子经验电子理论分析了中铬铸铁中Si对铸铁中温相变的影响，分析和实验结果表明，290Cr8Si2中铬铸铁基体含C、Cr、Si的-γFe晶胞中，C原子与Si原子的结合力强于C原子与Cr原子的结合力，中铬铸铁中较高的含Si量降低了铸铁基体的含Cr量，进而降低了中铬铸铁的淬透性。

RE modified multicomponent microalloy low chrome cast iron was subcritically treated to expect its hardmess and toughness to be an optimal match.

摘 要：对经稀土复合变质的多元合金化低铬铸铁进行亚温处理，以求其硬度与韧性的最佳匹配。

The interface connecting between WC particles and high chrome cast iron was studied by using H 800 TEM, WE 10 and MM 200 testers, and the courses of removing WO 3 film on the WC particles and conducting the slag were analyzed with the help of thermodynamic calculations.

利用 H- 80 0透射电镜、WE- 10型万能拉伸试验机和 MM- 2 0 0型磨损试验机研究了碳化钨颗粒与高铬铸铁的界面结合问题，并对去除碳化钨颗粒表面的氧化膜和造渣过程进行了热力学计算。

Generally speaking natural materials such as wood, clay, stone, or cast iron in all their forms make better companions for plants.

总体来说自然材料，如木材，粘土，石料，或铸铁，在其所有形式，更好地为同伴植物。

The running conditions the main body of a book is complied with analysing the dyadic crusher of hammer hammerhead and cleading has started off,has expounded and proven the rationality adopt high chromium cast iron able to endure.

从分析锤式破碎机锤头和衬板的工作条件出发，论证了采用高铬耐磨铸铁的合理性；介绍了锤头和衬板化学成分的选择。

The impeller shall be constructed of close-grained cast iron.

所有叶轮静态和动态平衡符合ISO 1940， G.6.3标准。

"The pump casing shall be constructed of close-grained cast iron, aSTM a48, Class 30, and shall be of sufficient thickness to withstand all operating pressures and mechanical stresses."

泵壳结构应该采用符合美国材料试验协会aSTM a48级别30致密铸铁制造，应该具备足够的厚度，能够承受所有运行压力和机械应力。

"The dry-pit submersible motor enclosure including frame, end brackets, flanges and cap assembly shall be constructed of close-grained cast iron, aSTM a-48, Class 30 or better."

干井潜水电机壳体，包括机架，尾轴承架，法兰和罩盖总装，必须采用符合美国材料试验协会aSTM a-48类别30标准的、密实的铸铁或更好的材料制造。

The submersible motor enclosure including frame, end brackets, flanges and cap assembly shall be constructed of close-grained cast iron, ASTM A-48, Class 30 or better.

潜水电机壳体，包括机架，尾轴承架，法兰和罩盖总装，必须采用符合美国材料试验协会ASTM A-48类别30标准的、密实的铸铁或更好的材料制造。

By means of bending tests of three-point and four-point, complex fracture experiment s were made for cast iron material with crack.

通过3点弯曲和4点弯曲实验方法，对含有裂纹的铸铁材料进行复合型断裂实验研究，测试铸铁材料的应力强度因子、断裂方向角，将实验结果与理论值进行分析、比较，找出两者之间的异同点，得到一些对工程设计及应用具有实际意义的结论。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。