Major reasons that cause dynamic balance troubles of induced draft fan impeller are analyzed. Contermeasures to different cases are put forward and have had good efficiency in practice.
分析了引风机叶轮产生不平衡的主要原因，针对不同情况提出了相应的对策。这些对策在实践中取得了良好效果。
We are duly in receipt of your letter dated on July 8, enclosing a draft valuing USD3000, to balance your account.
我方已收到贵方7月8日函及随函附寄的面额为3000美元的汇票一张，该汇票用来结算贵方账款。
Program confirmed, customers sign the final draft design confirmed that the outstanding balance of design, final design Cho electronic document delivery and transfer of copyright books.
方案确认后，客户在最终设计稿上签字确认，结清设计项目余款，卓奥交付最终设计电子文件和版权转移书。
The dynamic balance for rotor must be done in time, if the vibration value of the large draft fan is higher than the standard authorized value.
大型风机振动值大于标准规定值时，须及时对转子做动平衡。
The dynamic balance for rotor must be done in time, if the vibration value of the large draft fan is higher than the standard authorized value.
大型风机振动值大于标准规定值时，须及时对转子做动平衡。
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