During the training visits , we realized that every stone and column of the historic buildings has an interesting story behind which also made me feel the importance of protecting our historic buildings 培训期间，我们所接触的一柱一石、一砖一瓦，背后尽是一段段令人津津乐道的历史。身处其中，实有无限反思；而这些参观活动亦令我感受到保护文物是刻不容缓的。
Based on the former electronically controlled pump of our group , a new type pump has been designed and manufactured , which can implement pilot injection . the plunger , plunger sleeve and spring , as the key parts of the electronic pump , have been designed especially . and the problems in design are discussed in detail 设计、研制出实现预喷的电控喷油泵，重点是对电控泵中的关键部位一柱塞偶件，柱塞弹簧的设计，并对设计中应该注意的问题进行了较为详细的分析。
According to the results of theory and experimental researches in this paper , the design provisions in the " technical code for concrete - filled square tubular structure " ( draft ) are discussed . the load - carrying capacity formulations for end section of beam to at the column - beam connections are proposed 根据本文的试验和理论研究结果，对( (矩形钢管混凝土结构技术规程》 (送审稿)带内隔板的梁一柱栓焊连接节点设计内容进行了评析，提出了构造建议，并给出了梁柱连接处梁截面的抗弯、剪计算公式。
