It does this by fitting small piezoelectric acoustic sensors to parts of the structure to detect the particular frequency of noise caused by a crack in aircraft-grade aluminium.
把小型压电声传感器安装到这种构造部位上，检测由航空级铝材裂纹所致的特定频率的噪音，靠这样就能监测飞机裂纹。
Judging from reports of MiG fighter aircraft, helicopter gunships, tanks and Katyusha rockets churning up the spectacular mountainscapes of the country’s rugged north-west, the description is fitting.
从作战报告来看，在这个国家的西北部，米格战斗机、武装直升机、坦克、卡秋莎火箭炮把这片恢宏壮观、地势起伏的山川景象搅了个天翻地覆，所以说这样描述是恰如其分的。
Judging from reports of MiG fighter aircraft, helicopter gunships, tanks and Katyusha rockets churning up the spectacular mountainscapes of the country's rugged north-west, the description is fitting.
从作战报告来看，在这个国家的西北部，米格战斗机、武装直升机、坦克、卡秋莎火箭炮把这片恢宏壮观、地势起伏的山川景象搅了个天翻地覆，所以说这样描述是恰如其分的。
Noise map is produced from fitting image of superposition of noise levels of road traffic, railway, aircraft and industry at each reception point.
噪声地图是由道路交通噪声、铁路噪声、工业噪声和机场噪声等对城市地图上每个接收点的叠加噪声值拟合图像绘制而成。
As well as the new aircraft, it is expanding its navy's capabilities, re-fitting older Russian aircraft carriers as well as building new ones.
包括新的航空母舰，它大大的扩展了他的海军水平。他正在翻修俄国的航母，同时自己也在造新的。
Three-dimensional curve fitting and reconstruction of an intelligent structure shape were researched to implement the active monitoring for a high-performance aircraft structure shape.
研究了细长机敏柔性结构的三维形态拟合与重构方法以实现高性能飞行器结构形态主动监测。
This aircraft suits in the male and female shoe last fitting, USES in the non-nail fitting the bottom shoe last work, the operation simple convenient, the potency is good.
本机适合于男女楦头贴合，采用无钉贴合中底楦头作业，操作简易方便，效能佳。
This aircraft suits in the male and female shoe last fitting, USES in the non-nail fitting the bottom shoe last work, the operation simple convenient, the potency is good.
本机适合于男女楦头贴合，采用无钉贴合中底楦头作业，操作简易方便，效能佳。
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