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- Standards
- Testing 772 ngā hua
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- Information technology 417 ngā hua
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- OSI (Computer network standard) 111 ngā hua
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- Computer network protocols 75 ngā hua
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- Fire testing 54 ngā hua
- Radio 52 ngā hua
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- Low voltage systems 49 ngā hua
- Petroleum industry and trade 48 ngā hua
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- Wood-pulp 47 ngā hua
- Civil engineering 45 ngā hua more…