三角学的

Spherical trigonometry sine law Vector Proof online viewing, Shareyoucan free online learning courses.

21球面三角学正弦定律的向量证明方法在线观看，Shareyoucan免费在线学习课程。

Spherical trigonometry - Wikipedia, the free encyclopedia

球面三角学-维基百科，自由的百科全书

But we're not talking about your average textbook Trig, we require advanced spherical trigonometry; and if you don't know what that is, let's just say it's of utmost importance in the fields of astronomy, earth-surface/orbital and space navigation and floral arranging.

但是我们并不会去追究你这门课程的平均成绩，我们要求你认识理解先进的球面三角学，如果

Even complex trigonometric calculations are performed automatically.

即使复杂的三角学计算被自动进行。

The height of the mountain has been determined by trigonometry .

该山的高度已用三角学测得。

He received a low mark for trigonometry .

他的三角学分数很低。

They cannot be told directly or convincingly how learning trigonometry will fit into their future existence.

他们无法得知或心悦诚服地认识到学习三角学将会使他们适用于未来的生存。

Because thanks to these schools our early mechanics, especially in the New England and Middle Atlantic states, were generally literate and at home in arithmetic and in some aspects of geometry and trigonometry.

因为全靠这些学校，我们早期的机械工人才会能读会写，并精通算术以及一部分几何和三角学；在新英格兰和沿大西洋中部诸州尤其是这样。

Because thanks to these schools our early mechanics ,especially in the New England and Middle Atlantic states, were generally literate and at home in arithmetic and in some aspects of geometry and trigonometry.

由于这些学校的存在，我们的技工们基本上都识文断字、熟知算术及某些几何学与三角学知识，这种情况在新英格兰和大西洋中部各州尤为普遍。

Why mention the elementary schools Because thanks to these schools our early mechanics, especially in the New England and Middle Atlantic states, were generally literate and at home in arithmetic and in some aspects of geometry and trigonometry.

为什么要提到小学呢因为全靠这些学校，我们早期的机械工人才会能读会写，并精通算术以及一部分几何和三角学；在新英格兰和沿大西洋中部诸州尤其是这样。

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。