Lily: Yes, it's wind instrument with keys for the fingers to press on. The body is made of brass, and is usually curved.
莉莉：这是有手指可以按动按键的管乐器的一种。而且是铜制的弯曲乐器。
There are many methods to measure the circular curved line in circuitry construction survey. Angle offset method and tangent offset method are usually used.
在线路施工测量中，圆曲线测设方法有很多，通常采用偏角法或切线支距法。
A usually black or banded, hard volcanic glass that displays shiny, curved surfaces when fractured and is formed by rapid cooling of lava.
黑曜岩火山玻璃，一般为黑色，带状，摔碎时色泽光亮，表面。
Wrinkling usually happens in the punching process of curved surface sheet metal.
曲面板件在冲压成形时常常发生起皱现象。
Traditional isoparametric elements are usually sensitive to various curved or straight edge mesh distortion.
目前普遍采用的传统等参元族对网格的曲边、直边畸变均十分敏感。
The strata are usually irregularly curved surfaces and can not be expressed mathematically.
地层通常是不规则的曲面且不能用数学表达式表达。
Earth is an ellipsoid and its surface is curved, but the maps are usually drawn to the floor plan on paper. So before drawing you must spread the curved surface surface to the plane first.
地球椭球体表面是曲面，而地图通常要绘制在平面图纸上，因此制图时首先要把曲面展为平面。
Earth is an ellipsoid and its surface is curved, but the maps are usually drawn to the floor plan on paper. So before drawing you must spread the curved surface surface to the plane first.
地球椭球体表面是曲面，而地图通常要绘制在平面图纸上，因此制图时首先要把曲面展为平面。
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