The foundation has been established for assessments of multistep air - to - surface attacking action.

为评定航空综合体多步骤作战行动的作战效能奠定了基础.

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Determining the stage of colorectal cancer often requires a multimodality, multistep imaging approach.

确定结直肠癌的分期通常需要多形式 、 多步骤的影像手段.

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