– 1、掌握设备有形、无形损耗的类型及其对设备价值的影响； – 2、掌握设备折旧的含义、折旧方法与计算； – 3、掌握设备经济寿命概念及其计算； – 4、掌握存在新设备的设备更新原则及方法； – 5、掌握存在税收影响的设备租赁与购买比较决策

第一节 微生物的能量代谢 第二节 分解代谢和合成代谢间的联系 第三节 微生物的代谢调控与发酵生产 第四节 次生代谢产物代谢调控机制

压榨设备作用是将葡萄浆果或皮渣中的果汁或酒挤压出来，提高原料的利用率。 酿造白葡萄酒的压榨对象是除梗破碎或不除梗破碎的葡萄进行压榨取汁。 酿造红葡萄酒的压榨对象是经过除梗破碎的葡萄浸渍发酵后的皮渣

When the only force acting on a particle is always directed to- wards a fixed point, the motion is called central force motion. This type of motion is particularly relevant when studying the orbital movement of planets and satellites. The laws which gov- ern this motion were first postulated by Kepler and deduced from observation. In this lecture, we will see that these laws are a con- sequence of Newton's second law. An understanding of central

In this lecture, we consider the problem of a body in which the mass of the body changes during the motion, that is, m is a function of t, i.e. m(t). Although there are many cases for which this particular model is applicable, one of obvious importance to us are rockets. We shall see that a significant fraction of the mass of a rocket is the fuel, which is expelled during flight at a high velocity and thus, provides the propulsive force for the rocket

In this lecture, we will consider how to transfer from one orbit, or trajectory, to another. One of the assumptions that we shall make is that the velocity changes of the spacecraft, due to the propulsive effects, occur instantaneously. Although it obviously takes some time for the spacecraft to accelerate to the velocity of the new orbit, this assumption is reasonable when the burn time of the rocket is much smaller than the period of the orbit. In such cases, the Av required to do the maneuver is simply the difference between the

非均相物系的分离 连续相（分散介质）分散相（分散物质）非均相物系分离的目的：（1）回收分散物质（2）净制分散介质，如葡萄酒生产中的过滤

D244BD RIGID BODY DYNAMICS KINETIC EWEGY In echure we derwed am kinenc a susem u dm T= Fere ts the velouty relanve to G. for a nald body we ca wate Uing the vechor nidontklyAxB=Ax

In this lecture, we will derive expressions for the angular momentum and kinetic energy of a 3D rigid body. We shall see that this introduces the concept of the Inertia Tensor. Angular Momentum We start form the expression of the angular momentum of a system of particles about the center of mass

A pendulum is a rigid body suspended from a fixed point (hinge) which is offset with respect to the body's center of mass. If all the mass is assumed to be concentrated at a point, we obtain the idealized simple pendulum. Pendulums have played an important role in the history of dynamics. Galileo identified the pendulum as the first example of synchronous motion, which led to the first successful clock developed