| 1. | What are the advantages and drawbacks to each type of protection
每种保护类型的优点和缺点。 |
| 2. | The framework can support other types of protection if you extend
，这个框架就可以支持其他类型的保护。 |
| 3. | Electrical apparatus for explosive gas atmospheres - type of protection " p
爆炸性气体环境用电气设备. " p "型防护 |
| 4. | Electrical apparatus for use in the presence of combustible dust - type of protection " pd
可燃灰尘存在时的电气装置. pd保护类型 |
| 5. | Electrical apparatus for explosive gas atmospheres - part 8 : type of protection n
爆炸性气体环境用电气设备第8部分: “ n ”型电气设备 |
| 6. | Standard for safety for electrical apparatus gas explosive - part 15 : type of protection " n
爆炸性气体环境用电气设备的安全标准.第15部分:防护类型" n |
| 7. | Electrical apparatus for use in the presence of combustible dust - part 4 : type of protection " pd
用于易燃粉尘环境的电气设备.第4部分: " pd "型保护设备 |
| 8. | Electrical apparatus for use in class i zone 2 hazardous classified locations - type of protection " n
I级区域2类危险场所的电气设备. " n "型电气防护设备 |
| 9. | Electrical apparatus for explosive gas atmospheres - part 15 : electrical apparatus with type of protection " n
爆炸性气体环境用电气设备.第15部分: " n "型防护电气设备 |
| 10. | Electrical apparatus for use in class i , zone 1 hazardous classified locations : type of protection - powder filling " q
I级1区危险场所用电气设备:保护型号.粉末填充" q "型 |
