![]() Soil quality - Analysis of fluoride - Ion selective Electrometry 土壤质量 氟化物的测定 离子选择电极法 |
![]() Low-voltage switchgear and controlgear - Part 5-1:Control circuit devices and switching element - Electromechanical control circuit devices 低压开关设备和控制设备 第5-1部分:控制电路电器和开关元件 机电式控制电路电器 |
![]() Secondary cells and batteries containing alkaline or other non-acid Electrolytes - Portable sealed rechargeable single cells - Part 1:Nickel-cadmium 含碱性或其它非酸性电解质的蓄电池和蓄电池组 便携式密封单体蓄电池 第1部分:镉镍电池 |
![]() Textile - Evaluation for Electrostatic properties - Part 1: Static half period 纺织品 静电性能的评定 第1部分:静电压半衰期 |
![]() Secondary cells and batteries containing alkaline or other non-acid Electrolytes - Portable sealed rechargeable single cells - Part 2: Nickel-metal hydride 含碱性或其它非酸性电解质的蓄电池和蓄电池组 便携式密封单体蓄电池 第2部分:金属氢化物镍电池 |
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