packerle single-selective scheme 无封隔器的单层选择性完井方案
packerless single-selective scheme 无封隔器的单层选择性完井方案
selective topic scheme 选题策划
selective scheme
选择方案
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The award to Plexus in Kelso is the second-largest made under the regional selective assistance scheme for the last quarter of 2007.
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