According the P-V curve, to find out the ideal tidal volume which can decrease the harm of ventilator-associated lung injury.
以期根据P—V曲线个体化的选择比较理想的潮气量，减少呼吸机相关的肺损伤。
V rolling may decrease efficiently side overlap of plate, chamfer rolling may remove complately side overlap of plate.
平辊立轧可显著减小坯料侧面双鼓形及折叠，倒棱轧制可有效消除坯料侧面双鼓形。
The low content of alloying elements (Mo, V) and tempering insufficiency of parts also affect the generation of the crack. Preventive measures are proposed to decrease or eliminate the crack.
合金元素钼、钒含量偏低，工件热处理回火不充分也会影响到裂纹的产生，并提出了相应的预防措施。
The low content of alloying elements (Mo, V) and tempering insufficiency of parts also affect the generation of the crack. Preventive measures are proposed to decrease or eliminate the crack.
合金元素钼、钒含量偏低，工件热处理回火不充分也会影响到裂纹的产生，并提出了相应的预防措施。
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