《复合材料 Composites》课程教学资源（学习资料）第二章 增强体_glass fiber-5 Mid-IR luminescence of Dy3t and Pr3t doped Ga5Ge20Sb10S（Se）65 bulk glasses and fibers

Uints I. Basic listening practice 1. Script W: I bought a camera from your store. Here's my receipt. I know it's just warranty period, but the camera hasn't worked properly for some time, and now it's not focusing at all. M: We're sorry you've has problem with one of our cameras. I t seems that the camera has suffered some damage, but you've been a regular customer, and wed

7-3自然法 1.弧坐标形式的运动方程 f(t)= s() 2.自然轴系 (1)曲线的曲率

§2-1 Newton’s Laws Force Inertial Reference Frame 牛顿定律 力的概念 惯性参考系 §2-2 General Properties of Forces in Mechanics 力的基本性质 §2-4 Fundamental Quantities and Units Dimensions ﹡基本量和力学单位制 量纲 §2-5 Applying Newton’s Law of Motion 牛顿定律应用 §2-3 The Fundamental Forces of Nature ﹡ 四种基本力

一、填空题(每空1分,共30分) 1、GPS由()、()和()等三部分构成。 2、开普勒六参数有s、()、()、()、()和(). 3、电磁波的频率越(),电离层折射的影响大;

1. Compare Stearns' Type 2 fracture pattern to the okljoints from the class notes. Draw a diagram and discuss the nature and occurrence of the fracture(s)

4.1写出下列信号对应于s平面的复频率。 (1)e-sin(-5t) (2)3e-e(t) (3)cos 2t (4)2e-cos(2t+60°)

一．选择题 1．根据惠更斯—菲涅耳原理，若已知在某时刻的波阵面为 S，则 S 的前方某点 P 的 光强度决定于波阵面 S 上所有面积元发出的子波各自传到 P 点的 (A) 振动振幅之和 (B) 光强之和 (C) 振动振幅之和的平方 (D) 振动的相干叠加

1. The branch of accounting which aims at serving external users is called 2. a credit entry decreases asset and accounts or increases liability owner's equity, and revenue accounts

§13-1 概述（Introduction) §13-2 杆件变形能的计算( Calculation of strain energy for various types of loading ) §13-3 互等定理（Reciprocal theorems) §13-4 单位荷载法 • 莫尔定理(Unit-load method & mohr’s theorem) §13-5 卡氏定理(Castigliano’s Theorem) §13-6 计算莫尔积分的图乘法 (The meth￾od of moment areas for mohr’s integration)