Bring forward the effect measure of improving the start and braking feature of the CV flying shear.
提出了改善CV型飞剪机启、制动特性的有效措施。
Conclusion: Mechanical ventilation via face mask for serious respiratory failure of COPD and asthma is an effect measure.
结论：经面罩机械通气治疗COPD、哮喘所致重度呼吸衰竭是有效措施。
In northwest drought and desert area of our country, planting Elaeagnus angustifolia to amend salt alkali of soil and prevent sand blown by wind is an economic and effect measure.
在我国西北地区大面积的干旱、荒漠地区，营造沙枣林进行盐碱土改良和风沙危害的防治是既经济又有效的长远措施。
In northwest drought and desert area of our country, planting Elaeagnus angustifolia to amend salt alkali of soil and prevent sand blown by wind is an economic and effect measure.
在我国西北地区大面积的干旱、荒漠地区，营造沙枣林进行盐碱土改良和风沙危害的防治是既经济又有效的长远措施。
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