起飞时环翼机像火箭一样笔直上升,降落前一直处于巡航模式。
During takeoff, the coleopter would rise straight up like a rocket before alighting itself for cruise mode.
改变连翼机前翼上反角和后翼下反角对纵向气动特性影响不大,对横向气动特性有明显影响。
The changes in dihedral of front wing and cathedral of rear wing have little effect on longitudinal aerodynamic characteristics but large effect on lateral-directional characteristics.
对于旱地小麦,利用可调翼铲式深松机深松后,可以增加播种前土壤含水量,改善播种质量,提高作物产量;
For dryland wheat, subsoiling operation could increase pre planting soil moisture, improve sowing quality and the yield could be increased by 10% compared with conventional tillage.
对于旱地小麦,利用可调翼铲式深松机深松后,可以增加播种前土壤含水量,改善播种质量,提高作物产量;
For dryland wheat, subsoiling operation could increase pre planting soil moisture, improve sowing quality and the yield could be increased by 10% compared with conventional tillage.
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