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type of coal exploration
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type of coal exploration
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理学
煤炭地质勘查
释
type of coal exploration
煤炭地质勘查类型
煤炭资源勘查过程中,根据对煤矿床的地质研究和以往勘查经验的总结,按照影响煤矿床勘查难易的主要地质因素的不同,对勘查区进行的分类。
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number of R & D personnel
number of reading days per week
number of reeling with confine raw silk size
number of reorderings
number of repetitions
number of replications
number of rows
number of runs
number of samples
number of scans
number of scans (NS)
number of science and technology archives
number of search
number of share
number of sheets
number of significant digit
number of solutions
number of stages
number of states
number of survivors
number of the first class
number of theoretical plates
number of the second class
number of traffic exit and entrance amounts
number of variations of signs
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