1)  Renewal process
更换过程
2)  Replacement
更换
1.
End Cover Replacement on φ4.2m×10m Cement Mill;
φ4.2m×10m水泥磨端盖的更换
2.
Quick removal and replacement of dummy bar head of continuous caster;
连铸机引锭头快速拆卸与更换
3.
Application of New Technology in Replacement of 300t-Converter Shell at Baosteel;
宝钢300吨转炉炉壳更换中的新技术应用
3)  replace
更换
1.
In order to gurantee system normal operation,we replaced the second,third and fourth supporting ring that have been damaged badly.
为消除安全隐患,确保窑系统正常运行,对损伤严重的第二、三、四档领圈进行了更换。
2.
Many ropes of fall to the ground type rub to promote the machine to replace a cage craft complications,start construction method mainly from fix a cage of the east side the steel wire rope,take off a bottom of west the tail rope combine fixedly,hang the west bottle with to equip to take off to open,pull up the west bottle.
落地式多绳摩擦提升机更换罐笼工艺复杂,施工方法主要由固定东侧罐笼钢丝绳,摘西罐底尾绳并固定,将西罐与悬挂装置脱开,拉出西罐,新罐笼进入井口,新罐笼与悬挂装置、尾绳连接,新罐笼改由提升绞车牵引,解除东罐笼钢丝绳的约束,试运行等步骤组成。
3.
The craft of producing rail rope head of multi-rope friction hoist is sophisticated,and the replace method of tail rope is different according to the different mine,the safe construction problem is particularly important.
多绳摩擦提升机尾绳绳头制作工艺复杂 ,尾绳更换方法因矿而异 ,施工安全问题尤为重要。
4)  change
更换
1.
The paper briefly introduces the design and construction of the hanger rod change of the bridge, taking the hanger rod change of Qindou Bridge in Hangzhou City as a background.
该文以杭州市叶青兜桥的吊杆更换工程为背景,简要介绍了该桥吊杆更换的设计和施工。
5)  exchange
更换
1.
Ballast water exchange at sea is the only feasible method that has been used to minimize the transfer of harmful organisms and pathogens through ships' ballast water.
船舶“在航更换压载水”是目前唯一可行、且有效的用于减少由压载水作为媒介传播外来有害生物和病原体的方法。
2.
The exchange process of homemade 5A zeolite was described.
主要介绍了国产5A分子筛的更换过程,对更换过程中出现问题进行了处理和分析,总结了国产分子筛更换的经验和不足之处。
3.
The emptying method is the most common application in ballast water exchange, but it is still not perfect so far.
排空法是船舶最常用的压载水更换方法,但目前这种方法还不尽完善。
6)  Replacing
更换
1.
Several faults existing during replacing inner lining in vertical herringbone condenser,the way to replace,and its inspection were introduced.
介绍了立式波纹管换热器内垫更换中的问题、更换方案及其检验方法。
2.
The paper introducted the whole process and technical measures in replacing the belt in Wulanmulan coalmine.
详细介绍了乌兰木伦煤矿更换主斜井胶带机的过程和技术措施,对有长距离、大倾角皮带机而需更换皮带的单位,提供了可供借鉴的经验。
参考词条
补充资料:正规过程和倒逆过程
      讨论完整晶体中声子-声子散射问题时,由于要求声子波矢为简约波矢(见布里渊区),所得到的总波矢守恒条件会相差一个倒易点阵矢量G)。例如对于三声子过程有下列条件
  
  
     , (1)
  式中q1和q2是散射前的声子简约波矢, q3为散射后声子波矢,式(1)中G)的取值应保证q3也是简约波矢。这时会出现两种过程,其一是当q1+q2在简约区内时,可以取倒易点阵矢量G)=0,式(1)则简化为总波矢守恒条件,称为正规过程或N过程。其二是当q1+q2超出简约区时,所取G)应保证q3仍落于简约区内,由于q3与q1+q2相差G),显然q3位于q1+q2的相反一侧,这时散射使声子传播方向发生了倒转,故称为倒逆过程或U过程。U过程总波矢不守恒,但总能量守恒,因为声子频率是倒易点阵的周期函数,而q3与q1+q2只相差一个倒易点阵矢量。N过程在低温长波声子的散射问题中起主要作用。当温度升高,简约区边界附近的声子有较多激发时,U过程变得十分显著,它对点阵热导有重要贡献。
  
  在能带电子与声子散射问题中存在着与式 (1)相仿的总波矢条件
  k+G=k┡±q,
  
     (2)
  式中k与k┡分别为散射前后电子的简约波矢,±号分别对应于吸收或发射q声子。类似的在热中子-声子散射以及晶体中一切波的相互作用过程中,总波矢变化都相差一个倒易点阵矢量G),因此也都有N与U过程之分。这是晶体和连续媒质不同之处,连续媒质对无穷小平移具有不变性,才能求得总波矢守恒,而晶体只具有对布喇菲点阵的平移不变性,因此总波矢守恒条件会相差一个倒易点阵矢量。
  

说明:补充资料仅用于学习参考,请勿用于其它任何用途。