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perforatio
perforatio
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例句：
1
Application
of
Pressure
Differential
Detonating
Technique
in
DST-
perforatio
Combined
Operation of
Ultra
-
deep Wells
压
差
起爆
技术
在
超
深井
射
孔
测试
联
作
中
的
应用
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,
.
Facebook
you
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after
"
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then
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what
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of
as
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