ID 原文 译文
4726 2 The measuring instruments and tools used during the process of construction shall be calibrated according to the relevant laws and regulations of China; 2 施工过程中所使用的测量仪器和测量工具应根据国家相关法规进行标定；
4727 2 The mechanical mechanism of the air valve shall open and close flexibly and be free from looseness or jamming phenomenon; 2 风阀的机械机构开闭应灵活，且不应有松动或卡涩现象；
4728 2 The metal frame for fixing shadow-less lamp base shall be connected with embedded parts in floor by welding and shall not be fixed with expansion bolts; 2 固定无影灯基座的金属构架应与楼板内的预埋件焊接连接，不应采用膨胀螺栓固定；
4729 2 The metallic mounting bracket of dwarf signal shall be stable and free from corrosion; the concrete foundation surfaces shall be smooth and clean and free from obvious loss of edge and corner. 2 矮型信号机金属安装支架应稳固，并无锈蚀现象；混凝土基础表面应光洁，并无明显的丢边掉角现象。
4730 2 The metallic outer edge of signaling equipment shall be more than 2000mm away from the live parts of overhead contact line system. 2 信号设备的金属外缘距接触网带电部分距离应大于2000mm。
4731 2 The minimum spacing between pipe and other pipelines shall meet those specified in Table 4.3.8 of the current professional standard GY 5078-2008 Technical Regulations on Safety of CATV Distribution Network Projects; 2 管与其他管线的最小间距应符合现行行业标准《有线电视分配网络工程安全技术规范》GY 5078-2008表4.3.8的规定；
4732 2 The minimum temperature for construction environment shall meet those specified in the manufacturer's instruction of polymer motor; if it is not specified, it shall be controlled under 15℃. 2 施工环境最低温度应符合聚合物砂浆产品使用说明书的规定；若未作规定，应按不低于15℃进行控制；
4733 2 The minimum thickness of cap shall not be less than 300mm. 2 承台的最小厚度不应小于300mm。
4734 2 The mix design of concrete with durability requirements in permeability, freeze-thaw resistance, chloride ion penetration resistance and chemical erosion resistance, shall meet the relevant requirements of current national standard GB/T 50476 Code for Durability Design of Concrete Structures; 2 当有抗冻、抗渗、抗氯离子侵蚀和化学腐蚀等耐久性要求时，尚应符合现行国家标准《混凝土结构耐久性设计规范》GB/T 50476的有关规定；
4735 2 The mix proportioning suitable for the construction in hot weather should be determined through the operating condition tests of concrete trial mixing and trial transportation under the condition and duration approximate to the site transportation and the weather condition of the maximum air temperature predicted during concrete placing; 2 宜在近似现场运输条件、时间和预计混凝土浇筑作业最高气温的天气条件下，通过混凝土试拌、试运输的工况试验，确定适合高温天气条件下施工的混凝土配合比；