This discharge may state that it becomes effective when the contractor has received the performance security and the outstanding balance of this total , in which event the discharge shall be effective on such date 该结清单可注明，只有在全部未支付的余额得到支付且履约保证退还给承包商当日起，该结清单才能生效。
Ice nucleation bacteria are important factors causing and increasing plant frost and freezing injury , but treatments that reduce the numbers or activity of ice nucleation bacteria are effective on decreasing plant frost and freezing injury 摘要冰核细菌是诱发和加重植物霜冻的重要因子，通过减少和控制冰核细菌，在霜冻防治研究方面取得了一定效果。
3 . two conditions are simultaneously needed so that the sandplay therapy can be effective on the children ' s problems : ( 1 ) it relies on the accomplishment of the therapist , ( 2 ) it should be combined with the analysis of the familial dynamic system 沙盘游戏疗法对儿童问题治疗有效，同时需要两个条件： ( 1 )有赖于治疗师的素养； ( 2 )需要结合家庭动力系统分析。
At first , based on the simple genetic algorithm , an improved ga which adopts a combination of emigration policy and adaptive operator is presented . results of numerical optimization show that the improved ga is effective on preventing premature problem 本文在基本遗传算法的基础上首先研究了浮点编码遗传算法在数值优化中的应用，通过引进“移民策略”和自适应算子相结合的方法，改进了基本遗传算法在后期进化缓慢的问题，极大地减少了早熟性收敛的现象。
Some advice about quality education reform on mathematics school work . according to above discussion , a synthetic evaluation form that can reflect the goal of mathematics quality education is set up , in experimental research part , it gains a series of experimental data by one - term teaching experiments . using many kinds of methods of educational statistics , it analyzes the effects of synthetic evaluation plan is effective on improving the students comprehensive quality 实验研究部分主要根据理论研究提出的评价方案及具体测评方法，通过一个学期的教学实践获得了前、后测试的一系列数据，运用教育统计方法分析了该评价方案对学生综合素质提高的实际效果并得出了以下结论： ( 1 )通过该综合评价方案，很好地促进了学生知识、技能、情感领域的全面发展。
We arrange suitable candidates to clients for confidential interviews and also subsequent interviews on the demand of our clients . confirm employment : upon completing necessary resignation procedure , the selected candidate signs an employment agreement with the client . employment is effective on the date when the selected candidate reports duty 我们会在10 - 15天内向客户推荐第一批适合的人选，人选的资料以保密报告的方式提交给客户，并安排候选人接受客户的面试，共同确定最适合的人选。
The result indicates that the method is effective on the control of initial injection rate . some different size plungers and plunger sleeves have been designed for the second time . from the test result , some conclusions have been summarized , which is used to optimize the pilot injection for matching the diesel engine 为进一步考察预喷的情况，对柱塞进行了第二轮设计，通过对多种不同预喷规格的柱塞进行试验对比，得出影响预喷效果的主要结构参数和工作参数，为以后上柴油机匹配作试验依据。
Therefore , the image segmentated by a only threshold is not effective on numbers recognition . this text exerts mathematical morpholoy methods on this image and commendably eliminates illumination asymmetry of image . the image after processing by mathematical morphology methods passes throught segmentation by a only threshold and is effective on numbers recognition . this text brings forward a method - relative brightness value processing , the method eliminates illumination asymmetry of image , thins hues of numbers and boosts up the contrast between lines of numbers and background . the image after processing by mathematical morphology methods passes throught segmentation by a only threshold and is effective on numbers recognition 本文运用灰度数学形态学的方法消除图像光照不均匀的现象，处理后的图像再进行阈值分割，很好的提取出号码线条。本文用相对灰度值变换的方法对图像进行变换处理，消除了背景不均匀的现象、细化号码线条、强化了号码线条与背景的对比度。分割出的身份证号码线条细而光滑，很好的满足了身份证号码识别的需要。
Computing result shows that : coevolutionary mdo algorithms are effective on this problem ; distributed coevolutionary mdo algorithm is better than cooperate coevolutionary mdo algorithm ; asynchronous parallel version of distributed coevolutionary mdo algorithm speeds up the optimization procedure greatly while maintains good convergence performance ; multiobjective distributed coevolutionary mdo algorithm approximates the whole pareto optimal front well in only one single run , saves much computing cost than constraint method to obtain pareto optimal set , and greatly shortens search time by distributed asyn 计算结果表明：协同进化mdo算法求解该问题是有效的，其中分布式协同进化mdo算法优于合作协同进化mdo算法；异步并行的分布式协同进化mdo算法在保证收敛性能的同时大大加快了优化进程；多目标的分布式协同进化mdo算法仅一次运行就很好的逼近了问题的整个pareto最优前沿，比用约束法求解pareto最优集节省了大量计算开销，而且通过网络多台微机的分布式并行执行大大缩短了搜索时间。
