查询词典 difficult

The manual and automatism measurement of these cracks are especially difficult because most of these cracks are on the bottom of bridges.

由于大多数桥梁的结构裂缝都主要产生在桥梁底部，使人工检测和自动检测都特别困难。

In the light of cost index and pollution degree, the characteristics of kinds of pulp are analyzed in detail, and the GP pulp which is low cost, high-yield, no-pollution is chosen as the material of tableware. Based on material element analyzed, shaping technology is designed, the to and for single plane shaping equipment which is high shaping quality, high production efficiency and is easy to automatize is chosen. All kinds of measure are taken to solve the problems which are inequality in the shaping process of GP pulp, and dosage which matches with GP pulp is chosen. Some ways of fixing shape and heat up are analyzed, the technology of saving energy of heat pressing to fix shape being composed of oil heat and only one fixed shape in the mold is applied, with which it is high production efficiency, low cost to fix shape effectively, which saves energy 30 percent. In order to make the production line meet with material of GP pulp, measure are taken to solve the problem of pulp adhered to netlike molding which can lead to carry material difficult, the structure of fully automatic equipment is renovated, the loaded beam is optimizationally designed to make equipment structure compactand improve location precision and products quality. According to technologic flow and actual characteristic, Omron PLC is chosen as the core of the control system, proximity switch as detect unit take the place of touch switch, software is designed reasonably according to time order figure, hardware is simplified, the reliability of system is advanced, the stability of system is assured to make production order. Intelligence neuron PID system is studied theoretically which is made up of both neuron with self-organizing and self-learning function and ordinary PID with the characteristic of the simple structure and high stability, which can automatically tune the parameter with the change of system parameter, remain perfect performance.

按成本指标和污染程度分析各浆料的特点，选择低成本、高得率、无污染的磨石机械浆为原料，在原料组分分析的基础上，设计成型工艺，选择成型质量好、生产率高、易实现自动化的往复式单板成型机，采取各种措施解决GP浆成型不均匀的问题及选择与机械浆相匹配的助剂；分析几种定型方式和加热方式，采用定型效果好、生产率高、成本低的油加热与模内一次性定型相结合的热压定型节能技术，节能30％；为了使生产线适应磨石机械浆原料，采取相应措施解决由于粘网造成物料转移困难，对全自动设备结构进行改进设计，着重对物料传送系统的关键部件——承载梁的进行优化设计，使设备更加紧凑合理，提高设备的定位精度和产品质量；根据生产线工艺流程和现场特点，选用OMRON CPM1A型PLC为主核心，接近开关作为检测元件，替代有触点开关，选用可编程终端代替常规面板按扭，并按照时序图科学合理地设计软件，有效地简化系统硬件构成，提高系统的可靠性，保证系统的稳定性，从而使生产更加通畅有序；从理论上探索将神经元应具有的自组织、自学习要求与PID控制结构简单、稳定性好的全自动纸浆模塑餐具生产线的研究特点结合起来，构成神经元自适应PID控制器，当参数的变化时，系统能自行参数整定，保持优良的工作性能指标，满足实际需求。

In general, autonomous segment is one of the most difficult tasks in digital image processing.

通常，自主分割是数字图像处理中最为困难的任务之一。

The most difficult situation for deployment is the negative spin (no forward speed and low vertical speed), whereas, for example, a spiral dive autorotation speeds up parachute deployment.

抛备份伞最糟糕的的状况是在倒水平螺旋（没有前进速度，低的垂直下落速度）下，而高速螺旋中，由于旋转速度很高，备份伞可以很快的打开。

As power market reformation carries on, power grid is in difficult status at the aspects of modulating peak effectively, operating safely and stably and supplying power reliably. Pumped storage power station has an important effect on safe, stable and economical operation of power grid. Research on benefit's comprehensive evaluation and operation mode of pumped storage power station is the avant-courier and difficulty in the domain of technology economy and management, which has important theory research value and practical significance.

随着我国电力市场改革，电网的调峰、安全稳定运行和可靠供电面临更为严峻的形势，抽水蓄能电站对电网安全、稳定和经济运行发挥着重要的作用，对抽水蓄能电站的效益综合评价和运营模式进行研究是目前国际上技术经济及管理研究的前沿问题之一，也是难点问题之一，具有重要的理论研究价值和实际意义。

It was not so difficult to schedule because there were many opportunities and I was well accepted as a young avant-garde Japanese artist. Almost every week I could perform in small theatres, galleries and museums, and even received an artistic fee.

行程部署方面完全没有问题，因为演出机会很多，而我这个年轻前卫的日本艺术工作者亦很受欢迎，几乎每个星期我都有机会在小剧院、画廊或者博物馆演出，有时甚至有酬劳。

This is a difficult topic to figure out for the average person.

这是一个困难的课题，为一般人弄清楚。

The determination of its average velocity over this distance is not difficult.

要确定它在这段距离上的平均速度并不困难。

Since I have not been a citizen of the People's Republic of China, but in fact I have to exist in the territory of the People's Republic of China, I see myself as a drifting black household refugee here,any artificial work and life inconvenience with house-renting、 employment、business operation and so on caused by that, I think it comes from its natural habit of making things difficult, and to accept such an objective fact, any baffling charges arising from this declaration, personally I see it as the country's consistent act of political persecution, and so on, I individually no longer make any averment.

鉴于本人已非中华人民共和国公民，事实上又不得不生存于中华人民共和国领土，本人理解自己为流落于此之黑户难民，由此引起的租房、就业、经营等工作、生活上的人为不便，本人认为是来自于其国的习惯性自然刁难而接受这种客观事实，因为此声明所引起的莫名其妙的罪名，个人理解为其国一贯之政治迫害行为而不以为然，如此种种，个人不再予以任何辩解。

It is more difficult for them to get finance, especially from risk averse lenders who might actually have the funds, but are not as effective at mobilising them

他们将更难获得融资，尤其是从厌恶风险的贷款人那，他们可能有资金，但是没有动员资金的效力

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。