There are usually three main features about the pilot plant test sample:large mass and large grain size of samples, difficulty to control the sample grade.
半工业选矿试样一般有三大特点：质量大、矿岩石样粒度大及控制送样品位难度大。
Another differentiating element is service heterogeneity or variability which determines a difficulty to control and standardise a service outcome (Palmer, 1998).
另一个微分单元是服务的异质性或可变性确定难以控制和标准化的服务结果(帕尔默，1998年)。
It is a technical difficulty to control the deformation and the stress condition of the structure of large-scale shield shaft in over-river shield tunnel project.
控制超大盾构工作井的变形和结构受力状态是跨江跨海盾构隧道工程设计和施工的技术难点。
However, efforts to control them are consistently undermined by the difficulty and expense of identifying mosquitoes-of which there are at least 3,500 species, many of them hard to tell apart.
然而，控制这些蚊虫的努力一直没有进展，关键在于鉴别蚊虫的难度和费用——至少有3,500种不同蚊虫，其中有不少很难加以区别。
However, efforts to control them are consistently undermined by the difficulty and expense of identifying mosquitoes-of which there are at least 3, 500 species, many of them hard to tell apart.
然而，控制这些蚊虫的努力一直没有进展，关键在于鉴别蚊虫的难度和费用——至少有3,500种不同蚊虫，其中有不少很难加以区别。
The difficulty for marketers is creating the right kind of buzz and learning to control it.
难的是那些销售人员要建立正确的商业推销手段，并且学会控制这种商业手段。
It is a new way to use control configuration software to develop simulation-training system. It can reduce the difficulty of development and increase the speed and quality greatly.
利用瘦客户端的工控软件来开发仿真培训系统，可以大大降低开发的难度和提高开发速度和开发质量。
The difficulty for analysing basin sedimentation is how to control the horizontal variation of continental strata.
如何控制陆相地层横向不稳定性，是盆地分析的难点。
For the complexity and difficulty of establishing an accurate mathematical model of DO parameter control in sewage treatment system, we propose a fuzzy control method with PLC to deal with it.
针对污水处理系统DO参数控制的复杂性和难以建立准确数学模型的特点，提出了一种用PLC对系统进行模糊控制的方法及实现。
The key and difficulty of the technique is to control the fused drop's deformation accurately, because it influenced the part forming and precision directly.
熔滴变形情况直接影响零件的成形以及成形精度，所以对熔滴的形态变化进行精确控制是该工艺的关键和难点。
To control the crimes of "robbery, grab and theft", we should decrease criminal chances, improve the difficulty of crime, increase the cost of crime and lessen the criminal anticipation avails.
采取减少犯罪机会、加大犯罪难度、增加犯罪成本及降低犯罪预期回报等措施，可以有效控制“两抢一盗”犯罪。
Second, we use Binomial Distribution Function to accomplish the control of difficulty proportion in Adaptive Item Bank System.
第三，采用二项分布函数完成自适应题库系统中难度比例的控制。
A very severe nonlinear is presented because flight parameters vary along with the flight condition in the flight of missile which brings much difficulty to the design of control system.
导弹在飞行过程中，其飞行参数随着飞行条件的变化而发生较大变化，呈现严重的非线性，给控制系统的设计带来较大困难。
The paper brings forwards the adjusting speed technology to solve the problem of power big and disturb of motor and precision control difficulty.
轧机的电机功率大，干扰严重，其调速精度难以控制，文章提出的数字控制调速技术先进、可靠，解决了上述问题。
It is difficulty to design control schemes to ensure the stability of hybrid systems with random switched time because of the complexity of hybrid systems.
由于混合系统的复杂性，设计出能保证混合系统在任意切换时间下都能稳定的控制是比较困难的。
Some of the modern random control theories are used to reduce the difficulty of mathematical handling.
同时运用现代随机控制理论，简化了数学处理上的难度。
The outage of fault branches can cause the system to lose static load flow solutions, which increases the difficulty of analysis and control.
失稳故障支路退出运行使得故障后系统失去静态可行潮流解，增加了分析与控制的难度。
To unify the style of systems, decrease the difficulty of development and reduce the workload of development, we have come up with a design for generic type DAO, base control and web mode.
接着为了统一系统风格、降低开发难度、减少开发工作量，又进行了泛型Dao、基础控制类、网页模板的设计。
The improved system utilizes software approach to control mobile phones, which simplifies hardware requirement and reduces the difficulty of system setup.
本改进方法采用软件方式控制手机运行，简化测试系统硬件需求，降低系统搭建的难度。
The author discusses the faults of the existing plasma cutting machine, difficulty to start arc and to transit from minarc to maxarc, then puts forward a new control scheme based on technical desires.
针对原等离子切割机存在的起弧困难和小弧到大弧的转移不连续的缺点，对原控制装置硬件结构和控制线路进行技术改造，使用结果表明：该装置运行可靠，起弧容易，控制效果好，并且提高了生产效率。
To resolve above difficulty, the author bring forward a new plan for the robotic excavator, that is named "the robotic excavator distribute control system".
为解决上述困难，提出了应用分布式控制策略实现挖掘机器人的实时控制。
It was an emphasis and difficulty for a self - anchored suspension bridge to control the cable shape, internal force and cracking of concrete stiffening girder.
混凝土加劲梁的线形、内力和梁体裂缝控制是自锚式悬索桥施工控制的重点和难点。
As to the difficulty in constructing a model and variable impact because of uneven ground, a fuzzy controller is made to control the velocity of the hydraulic motor.
针对液压阀控马达模型建立困难而又不准确，路面凸凹不平造成冲击载荷时变等问题，设计了模糊控制器对行走马达的速度进行闭环控制。
It's large size of section, a mass of consumption of concrete and reinforcing steel bar, and uncertain factors, cause notable difficulty to the construction and quality control of transfer floor.
同时转换层截面尺寸大，混凝土和钢筋的用量都非常大，且施工过程中的不确定性因素多，给转换层的施工及其质量控制带来了很大的难度。
In order to overcome the difficulty of the discretization and application of fractional order controllers (FOC), the digital realization and control characteristic of FOC are studied in this paper.
针对分数阶控制器数值计算和应用难的问题，研究了分数阶控制器的数字实现方法和控制特性。
An economic solid garage is designed to solve the difficulty of parting in residential area in big cities, with is control system introduced.
针对目前大中城市居民生活小区停车难的问题，设计了一种经济型立体车库，介绍了其控制系统。
An economic solid garage is designed to solve the difficulty of parting in residential area in big cities, with is control system introduced.
针对目前大中城市居民生活小区停车难的问题，设计了一种经济型立体车库，介绍了其控制系统。
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