This paper introduces a computer distributing control system of the urea packing assembly line.
本文介绍了一个尿素包装流水线计算机集散控制系统。
The wash pipe packing of drilling swivel showed wear-and-tear continually in drilling process due to its structural design. The packing assembly was often torn by high pressure mud.
钻井水龙头由于结构设计的原因，冲管盘根在钻井过程中不断磨损，特别是在高压泥浆的作用下，盘根密封常常被破坏。
In allusion to the leaking of packing of gate valve, this paper presents technical improvement measures in properly selecting packing material and varying the structure of packing assembly.
摘要针对闸阀阀杆填料密封泄漏的问题，提出了正确选择密封填料的材料和改进闸阀填料压盖密封件结构的技术改进措施。
A series of NQCP's including inspection checklists define the activities associated with the performance of inspection at source, receipt, in-process, final assembly and packing inspection within BPS.
核质量控制程序(NQCP)系列文件，包括检验核对表，明确了货源检验、制程检验、最终组装检验和包装检验的相关活动。
Packing, unpacking and assembly of exhibits shall be done only in designated areas and at times designated by PDA.
包装、拆除包装、装配展示物品只能在PDA规定时间指定区域内进行。
Ruian dongjia machinery factory is a special enterprise manufacturing packing box slotting machine up and bottom cover assembly line.
瑞安东佳机械厂，是一家专业生产包装盒开槽机、地盖制盒流水线的厂家。
Fluid end consists mainly of module, suction and discharge valve assembly, suction and discharge spring, suction and discharge pipe, plunger, packing, safety valve and pressure regulator, etc.
液力端主要由液缸、吸入、排出阀总成、吸入、排出弹簧、吸入管、柱塞、盘根、安全阀、稳压器等部件组成。
Describe the problem of the traditional packing box in field application, and the structure and virtue of auxiliary stripping assembly of stem packing to the question.
阐述了常规阀门填料函在现场应用中存在的问题，以及针对此问题改进设计的填料辅助拆卸装置的结构、特点。
Ruian Dongjia Machinery Factory is a special enterprise manufacturing packing Box Slotting Machine, Up and Bottom Cover Assembly Line.
瑞安东佳机械厂，是一家专业生产包装盒开槽机、地盖制盒流水线的厂家。
This is the assembly workshop, this is the packing workshop, this is the end product workshop.
这是组装车间，这是包装车间，这是成品车间。
To prefabricate box-girder is important in concrete cable-stayed bridge construction, it affects directly the main bridge construction of assembly progress and packing accuracy.
箱梁的预制是钢筋混凝土斜拉桥施工中的重要环节，它直接影响到主桥施工的吊装进度和拼装精度。
Swivel packing seal assembly is the key of the swivel, whose function directly influences its service life, further more, and affects the drilling speed.
盘根密封是(水)龙头的关键环节，其性能直接影响(水)龙头的寿命和钻井速度。
Swivel packing seal assembly is the key of the swivel, whose function directly influences its service life, further more, and affects the drilling speed.
盘根密封是(水)龙头的关键环节，其性能直接影响(水)龙头的寿命和钻井速度。
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