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俯仰不稳定性
1、political instability───政治不稳定性
2、pitch───n.运动场地;程度;音高;推销行话;倾斜度;沥青;投球;街头摆摊处;颠簸;螺距;v.投掷;投(球);触地;击高球;重跌;颠簸;使倾斜;确定标准;定音高;投标,推销;搭帐篷;用沥青涂;用石头铺(路);给(麦芽汁)加酵母
3、perfect pitch───n.音高辨别力;完全音高感,绝对音感
4、impregnating pitch───浸渍剂沥青
5、instability defined───不稳定性定义
6、instability definition───不稳定性定义
7、instability define───不稳定性定义
8、instability───n.不稳定(性);基础薄弱;不安定
9、media pitch───媒体推广
1、effect of nonlinearity of pitch moment coefficient and module of rigidity of torsion on conditions of stability, instability points and instability mechanism is analyzed.───分析了升力矩系数和扭转刚度的非线性特性对于稳定条件、失稳点以及失稳机理的影响。
2、Analog tape recorders suffer from a different type of pitch instability called flutter.───模拟式 录音机受到另外一种名为“脉冲干扰”放音失真,造成音调不稳的干扰。
1、Two factors can lead to pitch instability: no or too small horizontal stabilizers (h - stabs) on too short a tail and high thrust line propeller placement which destabilises the force diagram.