GB/T 35060.4-2021
General specification of shearer—Part 4: Electric control system 滚筒采煤机通用技术条件 第4部分:电气控制系统 |
GB/T 39693.3-2021
Rubber, vulcanized or thermoplastic—Determination of hardness—Part 3:Dead-load hardness using the very low rubber hardness (VLRH) scale 硫化橡胶或热塑性橡胶 硬度的测定 第3部分:用超低橡胶硬度(VLRH)标尺 测定定试验力硬度 |
GB/T 39838-2021
LTE-based broadband trunking communication (B-TrunC) system—Test methods for interface (Phase 1)—Interface between UE and trunking core network 基于LTE技术的宽带集群通信(B-TrunC)系统 接口测试方法(第一阶段) 终端到集群核心网接口 |
GB/T 39839-2021
LTE-based broadband trunking communication (B-TrunC) system -- Technical requirements for user equipments (Phase 1) 基于LTE技术的宽带集群通信(B-TrunC)系统 终端设备技术要求(第一阶段) |
Find out:54176Items | First -Previous-Next -Last | [83] [84] [85] [86] [87] [88] [89] |