This requires two sine - cosine resolvers.这就需要两个正余弦分解器.Let's now examine the simplest wave from where the profile is a sine or cosine curve.现在让我们来考察最简单的波形,它的剖面图是正弦或余弦曲线.We derive the addition formulas for sine and c...
我用我的梳子把它迅速梳了一下。I gave it a quick brush with my hairbrush.她弯腰从地上捡起她的梳子。She bent to retrieve her comb from the floor.我们用梳子来梳理头发.We use a comb to tidy our hair....