diff --git a/app/helpers/export_helper.rb b/app/helpers/export_helper.rb
index f17ede53c..05b1b2f8b 100644
--- a/app/helpers/export_helper.rb
+++ b/app/helpers/export_helper.rb
@@ -113,7 +113,7 @@ module ExportHelper
       end
     else   #实训题
       shixun = homework.shixuns.first
-      shixun_head_cells = %w(完成情况 通关时间 总耗时 总评测次数 获得经验值 关卡得分)
+      shixun_head_cells = %w(完成情况 通关时间 学员在EduCoder做实训花费的时间 总评测次数 获得经验值 关卡得分)
       eff_boolean = homework.work_efficiency
       if eff_boolean
         eff_score_cell = ["效率分"]
@@ -123,7 +123,7 @@ module ExportHelper
       if allow_late_boolean  #允许迟交
         eff_score_cell.push("迟交扣分")
       end
-      shixun_time_cells = %w(最终成绩 更新时间 提交耗时 评语)
+      shixun_time_cells = %w(最终成绩 更新时间 作业发布到学员完成作业所耗的时间 评语)
       @work_head_cells = (head_cells_format + shixun_head_cells + eff_score_cell + shixun_time_cells).reject(&:blank?)
       works.includes(:student_works_scores, user: :user_extension, myshixun: :games).each_with_index do |w, index|
         myshixun = w.try(:myshixun)
@@ -163,7 +163,8 @@ module ExportHelper
         end
         w_15 = w.work_score.nil? ? "--" : w.work_score.round(1)
         w_16 = w.update_time ? format_time(w.update_time) : "--"  "更新时间"
-        w_17 = w.cost_time ? (game_spend_time w.cost_time) : "--"
+        myshixun_complete = myshixun && myshixun.status == 1
+        w_17 = myshixun_complete && w.cost_time ? (game_spend_time w.cost_time) : "未完成"
         teacher_comments = w.student_works_scores
         if teacher_comments.present?
           w_18 = ""