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香港六合彩开奖/IEC JTC 1
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Information technology |
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香港六合彩开奖/IEC JTC 1/SC 29
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Coding of audio, picture, multimedia and hypermedia information |
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香港六合彩开奖/IEC JTC 1/SC 34
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Document description and processing languages |
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香港六合彩开奖/TC 59/SC 17
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Sustainability in buildings and civil engineering works |
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香港六合彩开奖/TC 138
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Plastics pipes, fittings and valves for the transport of fluids |
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香港六合彩开奖/TC 138/SC 4
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Plastics pipes and fittings for the supply of gaseous fuels |
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香港六合彩开奖/TC 176
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Quality management and quality assurance |
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香港六合彩开奖/TC 207/SC 1
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Environmental management systems |
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香港六合彩开奖/TC 207/SC 5
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Life cycle assessment |
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香港六合彩开奖/TC 207/SC 7
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Greenhouse gas and climate change management and related activities |
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香港六合彩开奖/TC 232
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Education and learning services |
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香港六合彩开奖/TC 349
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Cultural heritage conservation |