难以处理的

The soft-measuring technique is systemically described from the following aspects: auxiliary variable selection, data processing, soft-measuring model construction and model correction. Moreover, in order to solve the problem of measuring temperature of aluminum electrolytic cell, the importation electric power and blanking velocity are selected as auxiliary variable, then the temperature estimated value of the electrolytic cell is calculated. An autoregressive model with controlled item based on Modern Time Series Analysis method is established.

从辅助变量选择、数据处理、软测量模型建立和模型修正等方面系统地介绍了软测量技术；并针对铝电解槽温度高、腐蚀性强、温度难以直接测量的问题，选择电解槽的输入电功率和下料速度作为辅助变量，利用现代时间序列分析法建立了带受控项目的自回归数学模型，从而计算出电解槽的温度估计值。

Based on that the instability of ferrate, fresh ferrate prepared by electrolysis was released directly to treat wastewater.

针对高铁酸盐难以长时间稳定存在的特点，实验用电解新制的高铁酸盐直接投加进行废水处理。

Communion is never mentioned, since catechumens are addressed; but if exomologesis did not eventually restore all Christian privileges, there could be no reason for fearing that the mention of it should act as an encouragement to sin, for a lifelong penance would hardly be a reassuring prospect.

共融，是从来没有讲过的，因为慕道者都得到处理；但如果exomologesis没有最终恢复所有基督徒的特权，不可能有任何理由，怕一提到它应作为一种激励，以单，为一个终身忏悔，将难以保证前景看好。

It has been known that taking actions to the incidents after they've happened can lead to unavoiding and uncontrolling of them. It's not a good way to do it in that case.

事实证明，群体性事件发生后才抓紧处理，造成不良后果才追究责任，这种方法是行不通的，必然导致群体性事件的更频繁发生和难以遏制。

At the outbreak of the First World War in 1914, many of the British soldiers from farming communities billeted in the towns had difficulty adjusting to the refuse system used in towns and cities.

一九一四年第一次世界大战爆发时，有出身农村的英国士兵获安排到镇上人家住宿，但对城镇的垃圾处理系统，往往难以适应。

Changing temperature and humidity during transport and storage may lead to caking of these products, which makes it more difficult for the final user to process them.

改变温度和湿度的运输和储存过程中可能会导致这些产品的结块，从而更难以最终用户加以处理。

Furthermore, there are some difficulties not only in the experiment research but also in the computer analysis, especially for the dynamic non-linear analysis, In order to improve the seismic design, the research in this field should be lucubrating.

平扭耦联是一个空间问题，不便简化为平面问题处理，无论是试验研究还是计算分析，尤其是非弹性动力分析，都有很大的难度，研究工作还不是很深入，难以为结构设计提供可靠的依据。

This kind of sulfide ore is relatively refractory and it is difficult to improve production ibexes, with high cost and low benefit. During 1988 to 2000, the per-product ability is 157.5 ton per day, primitive mineral tin grade is 1.89% and obtained 52~54% tin concentrated, with 51.06% recovery. Tin grade of 1.5% make mining and processing keep equal.

这种硫化矿比较难选，生产指标一直难以提高，处理该类型矿石生产指标低，成本高，效益差。1998年至2000年的三年间，平均生产能力157.5吨／日，原矿锡品位1.89％，产出的锡精矿含锡52～54％，锡回收率51.06％，原矿采选持平锡品位为1.5％。

The self fertilizing garden can also be planted in raised beds.

如果没有充足的微量矿物质，血液难以滋养细胞与传送废物与毒素到废物处理系统，随着时间过去这会为你的生物体带来更早地衰老与疾病。

Deepwater production is challenged by well underperformance problems that are hard to diagnose early on and expensive to deal with later.

深水生产正受到初期难以及时诊断且事后处理费用昂贵的油井运行不良问题的挑战。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。