语法检查Making sure the emergency shutdown position and revert p
语法检查
Making sure the emergency shutdown position and revert position of deflector emergency shutdown valve.Overspreading shutdown valve of deflector make deflector open slowly and close rapidly.
making 和 overspreading 要不要用Ing形式?为什么
Making sure the emergency shutdown position and revert position of deflector emergency shutdown valve.Overspreading shutdown valve of deflector make deflector open slowly and close rapidly.
making 和 overspreading 要不要用Ing形式?为什么
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