An accuracy control of the position and velocity of an ultrasonic motor is a difficult problem due to the time variance and nonlinearity of its parameters 摘要由于超声马达的时变和非线性，使其速度与位置的高精度控制成为难题。
However , the storage capacity in data acquisition unit is very limited , which turns out to be a difficult problem for data storing and processing 然而数据采集单元的存储器容量非常有限,这给大数据量的存储和处理带来极大的困难。
How to solve the outlet problem for the surplus rural labor force is a difficult problem of great challenge that faces china ' s modernization drive 摘要解决农村剩余劳动力的出路问题，是中国现代化进程中面临的一个极富挑战性的难题。
Gui capture / replay testing is appealing because it ' s a quick fix for a difficult problem . another class of tool has the same kind of attraction Gui捕获回放测试因为可以快速修复困难问题而具有吸引力。另一类工具也同样具有吸引力。
The problem on financial control in enterprise group is a difficult problem on internal management which puzzled many enterprise group 集团内部财务控制问题，一直是困扰各企业集团内部管理的一大难题，也是企业界非常关注的一个现实问题。
How to optimize the reorder point and order quantity is a difficult problem for slow moving spare parts with high cost and long storage time 摘要对价值高的慢速流动备件，如何确定其最佳再订货时间和订货批量，这是目前困扰企业的一个急需解决的问题。
Please give a brief example of a time when you had a difficult problem to solve . how did you go about solving it 这个我觉得就看你自己的经历了。比如帮学生会做一个活动中遇到意见分歧，或人手不够，或材料短缺，或资金短缺，等等等等，然后你怎么解决它。
Thus , we should n ' t only change government ' s function without the reduction of stuff , which is considered as a difficult problem in the course of reform 因此，决不能只转变职能，不分流人员。人员分流是地方政府机构改革的难点，这一点己形成共识。
In the practice of modern international commercial arbitration , how to properly solve the disputes amongst multi - parties is a difficult problem 摘要在当代国际商事仲裁实践中，对多方当事人争议采取何种适当的仲裁程序加以解决是困扰商事仲裁的一大难题。
The corrosion of reaction caldron in the aeroconcrete production is a difficult problem , it makes the service life of reaction caldron only half of the design life 摘要蒸压釜的腐蚀致使反应釜的寿命只有设计寿命的一半左右，一直是困扰建材行业多年的难题。
