This article puts forward three forecast methods on operation cost of oil field exploitation;through analysis and comparison of the cost from some specific cases, elaborates the application scope and precision of every method.
:提出油田开发操作费用的3种预测方法,通过实例对其进行了分析对比,阐述了各种方法的应用范围及精度。
In the operation,the unit experienced increasing equipment failures,energy consumption and operating costs.
2 MPa,压力较高,氢油体积比较大,产品质量略有过剩;随着装置运行时间增加,设备故障率有所增加,能耗增加,操作费用不断提高。
While life cycle assessment(LCA) offers a method to quantitively compare their environmental impact potentials and can be used to vote in the most suitable technologies together with help of operation cost analysis which includes disposal fee of air .
借助生命周期评价法(LCA)来比较净化工艺的环境影响,同时在运行费用中考虑固废的最后处置的成本,结合实例定量地评价两种烟气净化工艺的优劣。
Under the condition of consumption of raw material naphtha not to be increased, two processes of pre-hydrogenation and pre-extraction was developed in the ethylene complex project and the investment and operation cost evaluated.
在不增加石脑油原料消耗量前提下,开发乙烯联合装置裂解原料前加氢和前抽提2个改进流程,并计算该装置的工程投资与运行费用。
This paper analyzes the operation cost problem of hot oil pipeline.
针对热油管道运行费用问题进行了分析。
Analysis of energy consumption and running cost of gas enginedriven heat pump;
燃气机热泵的能耗与运行费用分析
In this paper, the evaluation standards are discussed, such as those for waste water quality and scale of wastewater treatment plant, selection of wastewater treatment technology, sludge treatment, land occupation, running cost and capital investment of wastewater treatment plant.
对污水处理厂可行性研究报告中污水水质、污水处理厂规模的确定、污水处理工艺选择、污泥处理、污水处理厂占地、运行费用以及工程投资等评审参考标准进行了探讨 ,污水处理厂规模的确定非常重要 ,污水处理工艺的确定是污水处理厂可行性研究报告的关键 ,建议采用高效低耗污水处理工艺 ,例如 ,氧化沟工艺 (OD)、SBR工艺等 ,其主要经济指标为 :吨水投资 60 0～ 90 0元 ,吨水占地 0 。
This winter seawater temperature in Bohai Sea,Yellow Sea and the East China Sea were analyzed and the initial investment of heat pump equipments and their running cost were compared.
通过对冬季的渤海、黄海、东海海域水温状况分析以及空调热泵设备的初投资和运行费用的比较,对海水源空调热泵在船舶上的适用性作出了一个初步的研究结论,并提出了扩大空调热泵应用海域的初步方法,对扩大空调热泵在船舶上的应用、降低能源消耗具有指导意义。
The investment costs per m~3 water and the operation costs of WWTP reduce gradually due to the increase of wastewater treatment capacities.
综合分析污水处理厂的吨水投资、管网投资和运行费用有助于弄清城镇污水末端处理的规模效应。
Aimed at the air conditioning project design schemes for a high-storey building of Beijing,combined with the architecture characteristics,compared the differences in function,initital investment and operation costs of three air conditioning scheme,and obtained the appropriate scheme.
针对北京某高层建筑空调工程设计方案,结合建筑特点,从空调各方案的性能、初投资和运行费用的差异等方面进行比较,确定了适合该建筑的空调方案。
This paper analyses the differences between traditional libraries and digital libraries in the aspects of the construct costs and operation costs,points out that traditional libraries need more space,more cost and have more value of literature;digital libraries have higher contents of technologies and staff.
本文从建设成本与运行费用两方面分析传统图书馆与数字图书馆的差异,明确指出传统图书馆空间要求大,人员费用高,但有较大的文献价值;数字图书馆技术含量高,设备投入大,需要素质较高的员工。
You should consider things like capital and operating costs, maintenance and spares requirements, safety implications, ease of operation,
你需要考虑的事情，包括投资与操作费用，维修与备件的要求，安全性要求，操作的难易性，
This kind of architectural machine, with high efficiency and less cost, is easy to maintain and operate.
这种建筑机械，操作维修方便，而且效率高、费用
Short time limit, less expense and conveniet operation are its feature.
它的特点是工期短,费用少,施工操作简便。
Responsible for directing all operations related to the maintenance, repair and upkeep of the facilities, equipment, grounds, machinery and maintenance operations.
负责指导所有与维护、理相关的工作，器具、备、所、械和维修操作的费用。
The use of a smaller centrifuge will merely make the operations more time-consuming.
用一架小些的离心机只会使操作过程耗费更多的时间。
The dilution method was obviously too tedious and uncertain for routine use.
稀释法明显太费事、太没把握了，不适用于常规操作。
Study on average length of stay and average hospitalization expenses of single diseases in surgery departments
手术操作科室单病种平均住院日与平均费用的研究
Misconceptions of Universities Tuition Policy and the Difficulty;
高校收费政策的观念“误区”与操作难题
operant conditioning theory of learning
学习的操作条件作用说
operator interaction
操作员交互作用;操作员与计算机的交互作用
μC/OS-II is a real time operating system with free and open source code,has been used broadly.
μC/OS-II作为一种免费的、源代码公开的实时嵌入式操作系统得到了广泛的应用。
"The user may come to our factory for inspection at any time. For those users located in Beijing, on-site training of operators free of charge is available."
用户可随时到工厂进行实地考察,公司免费对用户操作人员进行现场培训。
Please input your account number, end it with the pound key. If you want to use this phone, press the pound key directly.
对本机操作请按＃键，对其他固话预付费操作请输入电话号码，按＃结束。
I've tried five times to explain how to use the machine but he still cannot do it-I'm just banging my head against a brick wall.
该如何使用机器，我已经讲解了5次，但他仍然不会操作——简直白费力气。
This to-and-fro operation wastes very little heat．Some furnaces now blow air only, fuel oil being spayed instead of gas.
这种交替往复操作浪费的热很少。现在有些平炉喷人重油而不用煤气，因而只送人空气。
The contactive cryotherapy using liquid nitrogen is a satisfying method to treat chronic hypertrophic rhinitis, simple operation and with less misery, smaller expense.
液氮接触冷冻疗法是治疗慢性肥厚性鼻炎的一种理想方法 ,操作简单 ,痛苦较少 ,费用较低。
In many U.S. stores the cash register has been replaced by a computer that quickly and easily calculate the cost of items being bought.
在美国很多家大商店里，现金出纳机已被运算所购物品费用快捷、操作容易的电脑所取代。
The use of a smaller centifuge will merely make the operations more time-consuming.
用一架小些的离心机也是可以的，只不过是使操作过程耗费较多的时间就是了。