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INDEX ON记录号/D TO SIDX INDEX ON RECNO()/D TO SY INDEX ON RECNO()TO SY SORT TO SY ON RECNO()
Male elephants are hunted more than female elephants Both male elephants and female elephants are equally hunted Each elephant has a long life There are not any ivory hunters in the world now.
SY/T6143—2001 SY/T6243—2002 SY/T6243—2004 SY/T6243—2003
SY/T6426《钻井井控技术规程》 SY/T5964《钻井井控装置组合配套安装调试与维护》 SY/T6551《欠平衡钻井安全技术规程》 SY/T6203《油气井井喷着火抢险作法》
They compared zoo elephants with wild elephants. They kept detailed records of all the elephants in their care. They analyzed the records of the elephants kept in zoos. The zoo-born elephants they studied are kept in European zoos.
INDEX ON 工龄 + 职称 TO sy_sep INDEX ON 工龄，职称 TO sy_sep INDEX ON 职称 + 工龄 TO sy_sep INDEX ON 职称，工龄 TO sy_sep
SY/T5257—2004 SY/T4352—2000 GB/T5257—1980 SY/T5257—1966
SY/T6143—2004 SY6143—2004 SY/T6658—2006 GB/T18604—2001
INDEX ON记录号/D TO SY.IDX INDEX ON RECNO()/D TO SY INDEX ON RECNO()TO SY SORT TO SY ON RECNO()
DB844H65VTE-SY DB85DD65E-SY DB984H60E-SY DB985H65E-SY
SY/T6143 SY/T5922 GB17820 SY/T0003
SY/T6143-2004 SY6143-2004 SY/T6658-2006 GB/T18604-2001
They compared zoo elephants with wild elephants. They kept detailed records of all the elephants in their care. They analyzed the records of the elephants kept in zoos. The zoo-born elephants they studied are kept in European zoos.
SY215C8M SY135C8B SY360C6 SY420
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