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1 中文 +英文 14页 8516字数 翻译部分 is a of on of be of be as (1) 2) 3) 4) 5) 6) n of of to of be by is a of of of an is is a on It is of or to is by It to to of be to to do or is at of is to of . is is of is to a of up 8 . or is I it a be if is A a to a of is to of a a or of an is a on it a to at of is a be to of of of is a be in of as is of a a a to is be at by of a of is of or It is on by of be or by of or is to of by In it is a o to of a as a is is On is it to a is to a to A a a of It is to a of by is in is to of be is to as he of be of of be or by of be or of or in or of to is to or or of of be to of of to a is to of SS is in of a to or in of or to an of a a , As of is to of or to be be or a on or is on 4 n we be on a It be in do as is of A of a on is as a of of a a is to is is by or or of is by In it is of up be On of , .4 , of a is a is of or an a a is by of is by or be in or of It is in of a it is to a to of In is in a or on a In of on by a or is a be is in is is by in a is to to it an is to of in （ 1） of an to of is by of is of is （ 2） of be of is in a or on a I n is is to （ 3） is of to ) . is is a in to （ 4） is is of in of is by be as is a , 8 0 . be at a is of is by of to be As is a by of a a to of a of is to of i. e . , of , 6 of is to of of of of w o rk p ie it s cr e w le a d t h it D s c le w o e th is in of In be in or of to be I . e . , be so is a in no Tt to of is to or as of of of to he is in is of in by a on of in be by D= of in =is as as of be by FM is 00 or 0 00 00 or of of or of As as is of be as N = of a as of of is in it is to be as in by to or in a by a of of is to of In be by or in is is to on a n a a is or be or of is to to to is a of is of It of of a a be or In is by of a a in as a On in a in in as 8 to as by a is a of it is in is by is on of to be AP 18 , is as 130 40 ) of of 4 0 . or 5 5). of of in up (up 0 . A of of be or an of in It be 2.2 a . or or 0 20 . of is by of a A in as a to to of of a at a as it .5 (90 or in a in of as as a in of is to be 13 9 车床和车削 车床及它的结构 车床是一个主要用来生产旋转表面和端面的机床。 基于他们的目的，结构，能同时装夹刀具的数量，自动化的程度，车床， 或更正确的说， 车床类型的机床依下列各项被分类为 : (1) 普通车床 (2) 刀剖车床 (3) 六角转塔车床 (4) 立式的车削和镗铣机床 (5) 自动化车床 (6) 专用车床 尽管车床类型机床的多种多样，他们结构和工作的原则都有很大程度上的相似性。通过具有代表性的普通车床这些特征能最好地被说明。 床身 车床的床身是主要的框架，包括在二个垂直支撑架上的水平横梁。它通常由铸铁或者球墨铸铁通过铸造加工而成的用于减少振动。车床上的导轨让床鞍容易地沿纵长滑动。车床床身的高度应该适中，这样使操作人员能够容易地而且舒适地 做他或她的工作。 主轴箱 主轴箱安装在车床床身的左手边位置而且主轴与导轨 (床的滑动表面 )平行。 主轴由齿轮箱驱动，齿轮箱安装在主轴箱中。齿轮箱的功能将提供一些不同的主轴转速 (通常由 6到 18
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