... multi-step thread 多头螺纹 multi-step production 多级生产 multi-step type 多断级式 ...
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multi-step production
多步骤生产
以上为机器翻译结果，长、整句建议使用 人工翻译 。
As background, hydraulic fracturing is a multi-step process commonly used in oil and natural gas drilling to bolster eventual production from wells.
FORBES: Miami University Students and This Quant Pitch C&J Energy Services
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