一、选择 1、的作用是保持发动机在最适宜的温度范围内工作。 a.润滑系 b.冷却系 c燃料系 2、冷却水经水泵→水套→→散热器,又经水泵压入水套的循环,其水流路线长,散热强度大,称水冷却系的大循环。 a节温器 b风扇离合器 c风扇

一、选择 1、活塞从上止点到下止点所让出的空间容积称 a发动机排量b.气缸总容积c.气缸工作容积 2、压缩比是指与燃烧室容积的比值。 a所有气缸工作容积b.气缸总容积c气缸工作容积

第二章习题 (1)采用线性同余法(参见公式(22.3))产生伪随机数。取a=5,c=1,m=16和x=1.记录下产生出的前20数,它产生数列的周期是多少 (2)取a=137,c=187,m=256和x=1,用线性同余法产生出三维数组

定义:设A,B都是n阶矩阵,若有可逆矩阵P满足则称B为矩阵A的相似矩阵

高能物理可观测量的计算公式: A=[+, 8K(s) (A,.) 在微扰计算和事例产生器过程中,在相空间中随机产生末态 出射粒子的四动量常常会出现困难。假定对于n粒子末态,它的 洛伦兹不变四动量记为P1Pn,对应的质量为mmn,则其洛仑 兹不变的相空间体积元表示为 d)=(2)no)(p) i=1=1(2元) 相空间体积元可按如下公式因子化

第2章金属材料的组织与性能控制a 2.1纯金属的结晶 2.2合金的结晶 2.3金属的塑性加工 2.4钢的热处理 2.5钢的合金化 2.6表面技术

Chapter 8 British Holidays and festivals Time Allocation: 2 periods Focal Points: Christmas. Christian trinity. Easter and Halloween . Introduction Holiday is a day set apart for religious ob'servance or for the commemoration of some extraordinary event or distinguished person, or for some other public occasion Holidays are characterized by a partial or total cessation of work and normal

Chapter 4 Politics Time Allocation: 2 periods Focal Points: the importance of general elections; the Conservative Party and the labour party Introduction to Party systems a political party system consists of all the parties in a particular nation and the laws and customs that govern their behavior. There are three types of party systems

A General Survey of the United Kingdom Teaching Material: The Society and Culture of Major Englishh-Speakin Countries-An Introduction By Higher Education Press) Teaching Objectives: This course is mainly to make known to the students the British politics, culture as well as society at large, and its position in the world as far as its long

第一章船用泵 第一节泵的分类和性能参数 0001下列泵中属于叶轮式泵的是 A.齿轮泵B.叶片泵C.水环泵D.旋涡泵 0002不属于回转式容积式泵的是 A.水环泵B.齿轮泵C.螺杆泵D.旋涡泵