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1)  wreath line closes
环行封闭
2)  closed loop
封闭环
1.
The closed loop dimension and tolerance is calculated in order to calculate and check allowance and allowance tolerance.
通过封闭环尺寸及公差计算,计算并校核余量及余量公差。
2.
It must start from the confirmation of closed loop and retrieval of component loop, draw the line graph of dimension chain correctly and work out relevant procedure dimension and tolerance by using basic formula of dimension chain according to the types of dimension chain of craftwork.
解算尺寸链应从封闭环的确定、组成环的查找入手,准确画出尺寸链线图,根据工艺尺寸链的类型,利用尺寸链的基本计算公式计算出有关工序尺寸及公差。
3.
Based on the principal regulation of that dimension obtained indirectly must have accumulated errors, this paper, by means of accumulated errors and generality, mainly discusses the essentiality of dimension chain and analyzes the establishment of closed loop that can embody accumulated errors in technological dimension chain.
以"间接获得尺寸必然会有加工误差的累积"这一基本规律作为分析问题的基础,着重以误差累积与综合说明尺寸链关系的实质,侧重分析"体现误差累积的封闭环的确定,运用于工艺尺寸链中"。
3)  sealing ring
封闭环
1.
The paper expatiate how to differentiate increase ring,decrease ring and sealing ring from the basic conception of the technic dimensional chain in the course of the account of the technic dimensional chain,specially analyses the graphic solution and gives particular solve problems step.
从工艺尺寸链的基本概念入手,阐述了工艺尺寸链解算过程中,如何区分增、减环和封闭环,重点分析了图算法,并给出了详细的解题步骤。
2.
Taking the machining process as the basis in the dimensional chain drawing,with the naturally formation feature of the sealing ring(indirectly protection feature),the sealing ring can be quickly determined.
在尺寸链图中以加工工序为依据,利用封闭环的自然形成特性(间接保证特性)快速确定封闭环。
4)  closed circulation
封闭循环
1.
The technology of the closed circulation and zero discharge in paper mills with waste paper as raw material is a mature one.
废纸作原料的制浆造纸厂全厂废水封闭循环和零排放的技术已经成熟。
5)  closure [英]['kləʊʒə(r)]  [美]['kloʒɚ]
封闭循环
1.
System closure has become the trend of the paper industry.
封闭循环用水已成为造纸工业的大势所趋。
2.
White water closure was simulated in laboratory using the white water of a commercial newsprint plant was investigated. The relations among some wet end factors were probed in different closure levels, a method for characterizing the degree of the white water closure was suggested
利用现有新闻纸厂的白水在实验室条件下模拟了白水的封闭循环,探讨了不同的封闭条件下湿部各参数之间的大致关系,并利用富集因子表征白水封闭程度。
6)  close system
封闭循环
1.
Its germicidal and ameliorative actions in close system of whitewater are researched.
结果表明,在白水系统中添加超水可以起到很好的控制腐浆及杀菌效果,并可以改善白水封闭循环中产生的一系列问题,达到提高产量节约成本的目的。
补充资料:"月球轨道环行器"
      美国为"阿波罗"号飞船登月作准备发射的月球探测器系列(见空间探测器)。从1966年8月到1967年8月共发射5个,每个重380~390公斤。它是研究月球环境和表面结构的人造月球卫星,主要任务是在绕月轨道飞行时拍摄月球正面和背面的详细地形照片,绘制0.5米口径的火山口或其他细微部分的月面图,为"阿波罗"号飞船选择着陆点(见"阿波罗"工程)。
  
  每个环行器都装有两台带有特殊跟踪机构的摄像机,拍摄时不致因运动引起图像模糊,其中一台用于普查,一台用于详查。图像记录在胶片上,再用无线电传输到地球站。这个系列的前3个"月球轨道环行器"都在围绕月球赤道的低纬轨道上飞行,1号于绕月环行3天后作轨道机动,将近月点降至离月面58公里;2号最后达到距月面39公里的近月点,用望远镜头和广角镜头拍摄到清晰的月面照片,其中几幅近景照片的科学价值尤高。为了扩大摄影区域,3号的倾角由以前的12°左右改为21°,拍摄下10个可能为"勘测者"号探测器和"阿波罗"号飞船选用的着陆点。4和5号在绕月球极轨道上运行,从月球的北极上空飞往南极上空,以拍摄更大面积的月面并监视近月空间的微流星体和电离辐射。"月球轨道环行器"飞行结束后都撞击在月面上。这5个"月球轨道环行器"共对月面约99%的地区拍摄了高分辨率照片,借助这些照片选择了 8个平坦的月面区作为"阿波罗"号飞船可能的安全着陆点,同时还获得了月球表面的放射性和矿物含量等资料以及有关月球引力场等数据。
   
  

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