Recommended practice for line 21 data service 21线数据设备推荐规程
2.
Recommendation for polycrystalline semiconductor rectifier stacks and equipment 多晶半导体整流堆和整流设备推荐标准
3.
Electrical installations for open - cast mines and quarries - recommendations for equipment and ancillaries 露天矿和采石场的电气装置.第3部分:设备及辅助设备推荐标准
4.
Measurement of liquid flow in open channels - measuring instruments and equipment - recommendations for direct depth sounding and suspension equipment 明渠流量测量.第8部分:测量仪器和设备.第8b节:直接测深和悬置设备推荐标准
5.
Acoustics - recommended practice for the design of low - noise machinery and equipment - part 2 : introduction to the physics of low - noise design iso tr 11688 - 2 : 1998 ; german version en iso 11688 - 2 : 2000 声学.低噪声机械和设备推荐设计惯例.第2部分:低噪声
