The other method is pontryagin maximum value principle dealing with low thrust control problem . however when the system is very complex , especially when the system contains uncertain factors , the method is not effective 但在多指标的要求下，这种方法难以求得最优解；另一种方法是应用pontryagin最大值原理解决有限推力最优控制问题，但对复杂的或者含有不确定因素的系统往往难以奏效。
A : the september 11th incident has made it more evident that in the international situation , uncertain factors are on the rise and threats posed by non - traditional security problems loom larger , thus making the international security situation grim and complicated 唐家璇答： 9 ? 11 ”事件突出表明，国际形势中不确定因素增加了，非传统安全问题造成的威胁正在增大，国际安全局势严峻、复杂。
By analyzing risk sources and those uncertain factors affecting the risk , the diversion risk is defined as the probability of the maximum discharge after being adjusted and held higher than the maximum design flood 通过对导流风险来源和引起导流风险的各种不确定性因素的论述和分析，把施工导流风险定义为天然来(洪)水经过调蓄后，导流泄水建筑物的最大泄水流量超过其设计最大泄水能力的概率。
On condition of market economy , with intensely market competition and large amount of uncertain factors , the business incubator face more risks then ever before . as a result , it " s necessary to develop the incubator quickly and healthily 然而由于人才的缺乏以及制度环境的制约，我国孵化器的风险管理制度建设已经无法跟上其整体的发展步伐，因此研究孵化器的风险管理具有重大的现实意义。
Any forward looking statements such as performance forecasts , business plans , policies and other information regarding shindengen and the shindengen group appearing on this website have been formulated based upon information available to us at the time . however , they also include many uncertain factors 当?载当社当社?连业绩见通? ?计画方针等将来?情报当社现时点得情报基算定多分不确?要素含。
There are a large number of uncertain factors in geotechnical engineering , and research objects are diverse . so it ' s improper to study geotechnical engineering through the certain theory . therefore it is positive to do research through the random theory 滑坡工程中存在着大量的不确定性和不确知的因素，研究对象千变万化，从确定论观点来处理是不合适、不足的，而从随机的观点来分析是不可否定的。
Taking many uncertain factors in radio channel into account , the conflict is even more pungent while ofdm translate the high demand in time domain into the one hi frequency domain , and resolve the problem to transmit high bit - rate data in multi - path channel 由于移动信道的多种不确定因素，这一矛盾显得益发突出。 ofdm技术将时域的高要求转化为频域的高要求，解决了无线通信中高速率数据传输抗干扰的问题。
But this kind of entity may insurmountably have some uncertainties when it is expressed abstractly to the spatial object of gis , and these uncertainties are the uncertain factors including error , inaccuracy , illegibility and so on 但是这类实体在抽象描述为gis的空间目标时难以避免地会带有一定程度的不确定性，这种不确定性指的是在进行抽象描述时随之产生的误差、不精确性、模糊性和含混性等不确定性因素。
Its economic benefits is affected greatly by a great deal of uncertain factors . so scientific and reasonable method must be adopted in analyzing main influence factors and appraising the financial economic benefits . it ' s very important to making policy in the project 因此，采用科学合理的方法，准确地分析建设项目的主要影响因素，评价其财务经济效益，对项目建设投融资决策和项目决策都具有重要的意义。
