Iron deficiency anemia makes children act inattentive, apathetic, and irritable.
缺铁性贫血会导致儿童注意力不集中,对外界缺乏兴趣和易怒。
Under act of the alternating thermal stress, thermal fatigue is one of theprimary invalidity forms of cast iron workpiece.
在热交变应力的作用下,热疲劳是铸铁工件的主要失效形式之一。
Under act of the alternating thermal stress, thermal fatigue is one of theprimary invalidity forms of cast iron workpiece.
在热交变应力的作用下,热疲劳是铸铁工件的主要失效形式之一。
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