此外，刘等、王等、周等和鲁等指出应急救援活动涉及多个出救点和多个受灾点

此外，刘等、王等、周等和鲁等指出应急救援活动涉及多个出救点和多个受灾点[20-23]，毛等和李等指出应急救援活动还是多阶段的[8,11]

In addition, Liu et al., Wang et al., Zhou et al., and Lu et al. pointed out that emergency rescue activities involve multiple rescue points and multiple disaster areas [20-23], while Mao et al. and Li et al. pointed out that emergency rescue activities are still multi-stage [8,11]

In addition, Liu et al., Wang et al., Zhou et al. and Lu et al. pointed out that emergency rescue activities involve multiple rescue points and multiple disaster-stricken points [20-23], and Mao et al. and Li et al. pointed out that emergency rescue activities are still multi-stage [8,11].