These systems are able to cope with "noisy" and incomplete data and are easier to run on-line than KBSs.

这些系统还能够对付"噪音"信号和不完整的数据,而且比KBS系统更容易实现在线运行。

属类：化学及生命科学-化工-化工厂设计与操作

However they may interpret a fault as noise, if not properly taught. aNNs are able to learn from new process faults and so they should continue to improve with use.

不过,假如训练不当,它们也许会把事故信息解释成噪音。aNN系统能够从新的事故过程中学习,所以它们应该能够在使用中不断得到改进。

属类：化学及生命科学-化工-化工厂设计与操作

Design is a creative process with no "right" answers, drawing from the chemical engineer's experience and the wisdom of others.

设计是一个创造过程,没有"正确"的答案,而是出自于化学工程师的经验和设计者的智慧。

属类：化学及生命科学-化工-化工厂设计与操作

Someone once defined design as "The conversion of an ill-defined requirement into a satisfied customer." This is especially true in chemical engineering, and the steps between the two may involve much time and cost millions of dollars.

有人曾把设计定义成"把一个说得不清楚的需求转化成一个合格的顾客。"化学工程尤其是如此,而且在这二者之间的各个步骤会占用许多时间和大量开支。

属类：化学及生命科学-化工-化工厂设计与操作

Chemical engineers are involved in this industrial design process from pen to plant and certain common steps on that road can be recognised.

化学工程师参与的工业设计,从动笔到工厂实施的全过程中,可以划分出若干常见的步骤。

属类：化学及生命科学-化工-化工厂设计与操作

Many of those design stages are involved in process design, the design of the individual unit operations and how they should fit together to produce the desired product as safely and profitably as possible.

其中许多属于工艺设计,也就是个别的单元操作设计和如何把它们组合起来,尽可能安全、高利润地生产满意的产品。

属类：化学及生命科学-化工-化工厂设计与操作

Firstly the designer must try and obtain as detailed a design brief as possible so that he designs what is actually required. This will inform him as to what is necessary and which parts are optional.

首先,设计者必须获得尽可能详细的设计任务书,这样他可以明确设计的要求。这会给他指明什么是必须的,哪些部分是可选择的。

属类：化学及生命科学-化工-化工厂设计与操作

Next, all the information needed for the design such as legal constraints and physical properties is collected, and any unknown methods and similar projects should be researched too.

其次,收集设计所需的全部资料,比如法律上的限制和物性数据;而且对所有不成熟的方法和类似的设计项目也需要研究。

属类：化学及生命科学-化工-化工厂设计与操作

Using this information, and his experience, the chemical engineer will generate a number of designs and then evaluate these using economic and physical constraints.

利用这些信息和他个人的经验,化学工程师会提出一系列设计方案,然后使用经济的和物理的限制条件进行评价。

属类：化学及生命科学-化工-化工厂设计与操作

Finally the optimal design (in his opinion)will be selected, and a process flow diagram of the design will be drawn. From this a process and instrumentation diagram will be developed.

最后,(在他看来的)优化设计被选出,并且画出一个设计工艺流程图,由它再作出工艺与仪表流程图。

属类：化学及生命科学-化工-化工厂设计与操作