The locks are released when the process ends or when a commit operation releases locks that were acquired during a unit of work (UOW).
当进程结束，或者当提交操作释放在工作单元(unitof work,UOW)期间获得的锁时，锁就被释放。
In chemical engineering and related fields, a unit operation is a basic step in a process.
在化学工程及相关领域，一个单位的运作是一个过程基本介入。
Distillation is the most common method to separate liquid mixtures, while it is also one of the biggest energy consuming unit operation in process industries.
精馏是分离互溶液体混合物最常用的方法，也是化学工业中最大的能耗单元操作之一。
Chemical process flow simulation technique is a powerful tool for chemical engineer to design new unit, to analyze the performance and to improve the operation of the existing unit.
化工过程流程模拟技术是化工工程师设计新装置和分析现有装置性能、改进现有装置操作的有力工具。
The process characteristic, operation, and reuse of deodorization alkali waste from gasoline of crude distillation unit were introduced in new alkali waste oxidation plant.
介绍我厂新建碱渣氧化脱臭装置工艺特点、运行情况及脱臭后常汽碱渣的回用情况。
In order to improve quality and optimize refinery heavy oil hydrotreating unit operation, the paper developed hydrogenation process model for predicting product quality under certain conditions.
为了改善重油品质以及优化炼厂加氢装置操作，本文开发了用于预测特定条件下加氢产品品质的加氢处理过程模型。
This model can facilitate the design, operation, process optimization and advanced control of a SMBC unit.
该数学模型可以用来指导模拟移动床色谱装置的设计操作、过程优化与先进控制。
Antifreezing is always a notable problem in the start-up in winter, shutdown process and low load operation period of air cooling condenser of large size direct air cooling unit.
大型直接空冷机组空冷凝汽器在冬季启动、停机过程以及低负荷运行阶段的防冻问题尤为突出。
In combination with current oilfield dosing process, a matching unit is developed for continuous dosing of easy use, prompt, safety, energy saving and reliable operation.
结合油田目前加药工艺，开发出一种简单、方便、安全、节能、运行可靠的油井连续加药配套装置。
The factors lead to shutdown are equipments, electric meters, other non-workshop reasons and process operation in turn via analysis many unexpected shutdown of low-density polyethylene unit.
分析了低密度聚乙烯装置多次发生非计划停工的原因，发现导致装置发生停工较多的因素依次为设备、电气仪表、其他非车间原因以及工艺操作等。
The operation status of acid recover unit in PVC section was introduced, as well as some problems presenting in operation process and it's settlement was described.
介绍了聚氯乙烯工段酸回收装置的运行状况，叙述了运行过程中出现的问题及解决办法。
The system can simulate the process and control system of PX unit and provides operation training such as start up or shut down as well as accident treatment for the operator.
该系统能够模拟装置工艺及控制系统特性，对操作人员进行开停工及事故处理等操作培训。
The results have shown that this method will benefit the security and economy of hydropower plant operation and help the study of the dynamic process of the unit.
仿真实验结果表明，新方法更准确地反映了水击极值点及整个动态过程，对保证水电站运行的安全性和经济性以及研究机组动态过程具有很高的理论和实际应用价值。
The process simulation is performed for ethylene glycol plant by using the PROCESS simulation programme, and the unit operation model and the thermodynamic method are determined.
应用PROCESS模拟程序，对乙二醇装置进行了流程模拟计算，确定了单元操作模型及热力学方法，计算结果与国外设计数据相吻合。
A closed loop system with information feedback consisted of production planning and process operation of unit was optimized and integrated as two ranks in petrochemical industry.
将石化企业的生产计划与装置的操作工艺作为两个等级进行优化集成，从而构成了一个带有信息反馈通道的闭环系统。
Heat exchangers are the critical equipment in petroleum refinery process units, whose corrosion will have a great impact on the normal unit operation and product quality.
冷换设备是石油炼制装置中重要的设备，冷换设备的腐蚀已严重影响产品的质量和装置的正常运行。
Through the optimization of process operation and change the heat transfer process, makes the unit run longer cycle.
通过优化装置工艺操作方式及变更换热流程，使得装置的运行周期更长。
A temperature detecting unit, with the system operation process, properties, hardware structure, working principle and software, of corn drying machine is introduced in this paper.
介绍了谷物烘干机温度巡检单元的系统工作过程、性能、硬件构成、工作原理及系统软件。
Dynamic characteristic of power plant thermal process is close related with operation conditions of power unit.
电厂热工过程的动态特性与整个机组的运行工况密切相关。
The paper introduces the revamping contents, process scheme and operation parameters of main equipment of the revamping Zhongyuan ethylene unit.
介绍了中原乙烯装置改造的内容、改造后的工艺流程及主要设备的操作参数。
The present invention relates to a disk-like ring-arc regular tower packing, belonging to a regular packing of packed tower of chemical engineering unit operation process.
一种圆盘状环弧规整塔填料属于化学工程单元操作过程的填料塔中的规整填料。
The paper describes the design principle, main unit structure, operation process, main features and application of LJK combined type tramp iron remover for magnetic ores.
介绍了LJK联合磁性矿除铁器的设计原理、主机结构、工作过程、主要特点及应用情况。
This paper discusses the liquid nitrogen washing (LNW) process and the problems met in the operation of Lurgi LNW unit? Reasons for the problems are analyzed and the solution measures are put forward.
讨论液氮洗工艺及鲁奇装置中液氮洗工艺运行中所遇到的问题，分析原因，并提出改进对策。
According to operating process of trailer mounted pumping unit, an auto control operation system of trailer mounted pumping unit is developed.
根据采油车的作业流程，设计开发出了一种采油车作业的自动控制系统。
The treatment process consisting of a series of unit operation is the trend of the wastewater treatment.
提出处理化工废水的工艺发展趋势是采用多种方法的组合工艺。
The waste edible oils and fats disposal unit shall be equipped with the condition of whole process sealed operation in the processing technology.
废弃食用油脂处置单位应当在加工工艺上具备全过程封闭化处置的条件。
The waste edible oils and fats disposal unit shall be equipped with the condition of whole process sealed operation in the processing technology.
废弃食用油脂处置单位应当在加工工艺上具备全过程封闭化处置的条件。
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