三角学的

Water to deal with physical sedimentation and biological degradation,artificial waves,the natural cycle of things,with the rain water collection systems on land and water animals and plants chain,while the scientific transformation of the beach,clear water to create Sands coastline of the urban landscape.

"都会沙滩"是海岸线开发建设的重中之重，是长三角学最具有海派气焰派头的都会海岸景不雅围水面积达1.5平方千米海水处理采用物理沉淀、生物降解、人工造浪、自然循环外，辅以陆上的雨水收集系统和水中的动、植物链，同时科学改造沙滩，打造金沙碧水的都会景不雅岸线人工铺设的金色细沙与清澈的海水相映成趣，紧挨着着沙滩的是已经建成的景不雅长廊长廊的上面是白色波浪形状的顶棚，当黑夜两侧的灯全亮起来的时辰，整个长廊就如一条长长的翻滚着的珍珠带，波浪起伏煞是好看

The mathematical models of the dynamic target and the tested apparatus are constructed with spherical trigonometry spherics. The general structure of the dynamic target is introduced. The performance, the detail of structure and selection of material of its main components are studied. The mass center and dynamic precision of the dynamic target, the static deformation of rotation arm are calculated and analyzed.

本文主要介绍了新型动态靶标研制的必要性、动态靶标检测的原理；运用球面三角学，建立了动态靶标与被测仪器间的数学模型；介绍动态靶标的总体结构设计，对各重要组成部分的功能、结构及原材料的选择等进行了详细的分析；对动态靶标的重心、旋转臂的静态变形及整机的动态精度进行了分析和计算；最后介绍了动态靶标的标定方法。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。