temperature action造句

• But during the caring age , if the concrete do n ' t experience the low temperature action of frost - resisting critical strength , its strength will decrease
  但若混凝土在养护期内没有达到抗冻临界强度受到低温作用，其强度将降低。
• Through experiment study of tank model under prestress , water pressure , temperature action , external loads , and coactions of all the loads , stress characters of various parts of concrete tank are analyzed
  通过大量算例，对构件组合和变温差异对热应力的影响问题进行了分析。并根据分析结果提出了一种新的罐体结构型式。