The domestic research achievements, the principle and the element characteristics of microalloying are introduced, the production of microalloying steel and the prospect are discussed.
介绍了国内在钢的微合金化原理、微合金元素特性及微合金化钢研究取得的成就,对生产微合金化钢及其发展前景等方面进行了探讨。
The trace element characteristics of Cambian-Ordovician carbonates in Bachu area of Tarim basin are studied, and their enrichment mechanisms are discussed.
研究了塔里木盆地巴楚地区寒武-奥陶系海相碳酸盐巖的微量元素特征,探讨了微量元素的富集机制。
The high pressure source mineralogy signaled by Andean adakite trace element characteristics originates in three ways.
由这种巖石的痕量元素特征揭示的高压组成矿物,表明其有三种可能的成因。
A simple method is developed to compute the strength of large-sized U-shaped bellows by applying SAP5 program, with the element characteristics discussed.
提出了一种应用SAP5程序对大型U型波纹管进行力学性能分析的简易方法,并对单元特性进行了计算分析。
Therefore, the element ratios can be applied to the study of trace element characteristics of rocks in the tholeiite source region.
因此研究拉斑玄武巖源区巖石中的微量元素特征可以采用元素比值的方法。
ObjectiveTo clarify the vessel element characteristics of Sophora japonica so to enrich the basic data of cultivation and resources survey.
目的澄清国槐导管分子特征,丰富其人工栽培及资源鑒定的基础性资料。
The trip principle, mounting methods, element characteristics and influencing factors, and applications of PTC overcurrent protectors based on polymer were introduced in this paper.
介绍了高分子基PTC过电流保护元件的动作原理、安装方式、性能特点,影响因素及其应用。