According to the allowance of production, the maximum error of measurement is used to determine the accuracy of the instrument. 根据生产所允许的最大测量误差来确定仪表的精确度。
An artificial random disturbance is carried out for some seismological observation data in the allowance range of seismological observational error with random disturbance method. 采用随机干扰方法,在地震观测误差容许值范围内,对地震观测资料进行人为随机干扰。
Allowance angle error for tapered bore bearing rings 圆锥孔轴承的角度允差
The third step is called the allowance design which is meant to select an error precision of parameters for optimum benefit. 第三次叫容差设计,研究如何选择参数的误差精度使总的效益最好。
Tolerance restricts manufacturing error of part, and allowance redeems the error that comes into being in the process of product assembly. 容差和工艺余量分别是控制零件制造误差和补偿产品装配累积误差的重要参数。
If using shut-down ignition, the allowance error is less than 10 cm. 若采用停车点火,系统控制点火允许误差小于10cm。
If the viscosity resistance is made allowance for experimental data, the experimental error can be reduced from 4. 3% to 0. 3%. 在实验数据中考虑空气粘滞阻尼力的影响,可使实验误差从4.3%降低到0.3%。
Usually, process allowance is used to compensate assembly error ′ s stack-up in the process of aero-product ′ s development. But improper allowance may affect assembly-benefit. 航空产品研制过程中通常用工艺余量来补偿装配累积误差,不合理的余量将导致装配效益低下。
For the quantification of allowance selection standard in peripheral milling processing, this paper analyzes the main effects of machining precision, and the result shows that form error is the most primary cause. 为了量化周铣加工中余量的选取标准,本文分析了加工精度的主要影响因素,结果表明,加工误差是其最主要原因。
A different view on the allowance angle error provided in GB 307. 1-84 is suggested, i. e. such allowance should be determined by the linear quantity along the diameter direction of the unit width. 本文对GB307.1-84规定的圆锥孔轴承的角度允差提出不同的看法,即应以每单位宽度在直径方向上的线量来确定角度允差。附图2幅,参考文献1篇。