换句话说，两个操作操作的组合可能会产生显著超过2倍精度的误差。
In other words combination of two arithmetic operations may produce rounding error that significantly exceeds 2 epsilon.
他希望在5年内，提升他的测量精度，到达到现在(测量)水平的4倍。
He hopes to improve the accuracy of his measurements four-fold within five years.
这次获得的结果大约是以前观察的10倍，而Gebhardt 表示其原因主要是由于望远镜精度的提高补偿了地球大气层对光线的扭曲。
The measurements are about 10 times better than previous observations, largely because of telescope enhancements that compensate for distortions in Earth's atmosphere, Gebhardt added.
这种方法零件的加工公差按装配精度要求的允许偏差放大若干倍，对加工后的零件测量分组，对应的组进行装配，同组可以互换。
In this method, the machining tolerance of parts can be enlarged several times according to the allowable deviation of assembly precision requirement.
其中的呼吸测试显示他的血液酒精度是。18。这个数字是法律允许驾驶范围的两倍。
This included a breathalyzer test, which revealed that he had a. 18 blood alcohol level, more than double the legal limit for driving.
给出了数据采样频率是物理量变化频率10倍、8倍和6倍以上时测量精度的适用范围。
And it gives the suitable limits of measurement precision respectively, when the sampling frequency of data is 10 times. 8 times and 6 times of the frequency of physical change.
增量式磁旋转编码器作为转角位置传感器，可以用四倍频的方法提高其测量精度。
The incremental magnetic rotary encoder, as a corner position sensor, can be improved its measure accuracy by the way of quadruplicated frequency circuit.
对角锥棱镜用于激光直线度测量时可使测量精度提高一倍的光学特性进行了分析。
The optical properties of doubling the measurement accuracy using the cube-corner retroreflector which is applied to laser straightness measurement are analyzed in theory.
计算结果表明图形声学方法有较高的精度，计算速度比板块元方法快9 -10倍。
Numerical results show that GRACO method enjoys high precision and computing speed is 9 to 10 times faster than the Planar Elements method.
经与常规检测方法对比，该检测机的检测精度提高了一个数量级，检测效率提高2 ~5倍，检测结果一致性好。
Compared with conventional measure methods, the measure accuracy is improved by an order of magnitude and measure efficiency is improved by 2 ~ 5 times and data consistency is very good.
自动绕线机把精度控制在最小0.01毫米的同时也可以使生产效率提高两倍。
Automatic wending machine can control the accuracy under at lest 0.01 millimeter, and at the same time increase efficiency by two times.
采用特伦逆向反射装置，消除它在位移或振动过程中因偏摆或横移所带来的影响，使测量灵敏度和精度提高约一倍。
Trent reverse reflection device is adopted to offset the effect caused by beat and cross sliding during displacement or vibration and to enhance measurement sensitivity and accuracy nearly one time.
自1949年首个原子钟(以氨分子为磁振源)面世以来，原子钟的精度每十年就几乎提高十倍。
Every 10 years since the first one debuted in 1949, based on oscillations in the ammonia molecule, the accuracy has increased by about 10 times.
作者以实例说明分周期的拟合精度是不分周期拟合精度的17 ~28倍，并且分周期拟合具有较好的拟合效果。
An actual example is taken to illustrate that fitting precision of separated period is 17 ~ 28 times larger than non-separated period and the fitting of separated period has good effect.
解决了大型精密安装的轴向合像问题，并可将瞄准精度提高一倍。
This resolved the problem of axial split-image in mass exact setting and improved the precision up to twice than the former.
实用效果表明厚度精度提高一倍以上，同时宽度波动可大为减小。
The practical effect is that the thickness accuracy is raised more than double, as the same time the fluctuation of width is greatly reduced.
与实际电路仿真结果相比，该模型仿真精度最大误差仅为万分之二，仿真速度超过实际电路仿真的800倍。
Compared with the result of RTL simulation, the maximal evaluation error of the simulator is less than two per ten thousand and the simulating speed is 800 times faster than RTL simulation.
车削加工叶片轴头精度、粗糙度全部达到设计要求，提高加工效率4- 5倍。
The accuracy and the roughness of the turned vane spindle nose both satisfy design requirements, and the processing efficiency is improved by 4 to 5 times.
这种新型加速度计具有量程大（4000倍重力加速度）、精度高的特点。
This new nano-accelerometer has ultrasensitive sensors and high measurement range to 4000 gravitational acceleration.
试验和分析表明，该测试系统相对原有的测试系统精度提高4倍，功效提高一个数量级，从而证明了本系统的优越性。
Test and analysis show that the system has the ability of enhancing precision 4 times and efficiency an order of magnitude, then advantage of the system is proved.
与现有方法比较，这两种方法还将系统的测量稳定性分别提高了2倍和5倍，满足了并行共焦显微系统高精度快速测量的要求。
In contrast to exiting method, the system's stability has been increased by 2 and 5 times by these two kinds of methods, which can fit the high-precision requirement in rapid measurement.
与传统工艺相比工作效率可提高数十倍，高产量、高精度、低成本，美观大方。
Compared with the traditional craftsmanship, it could promote work efficiency scores of times, with high output and precision, low cost, beauty and elegance.
通过DDS芯片AD9851来产生相对于输入信号64倍频的高精度采样信号。
Through the DDS CMOS chip AD9851, the system produces a 64 points sampling signal.
在同一电子计算机上利用这些数值逼近公式，其计算速度，以子午线孤长正反算为例可比相应的同精度的经典方法提高五倍至数十倍。
Working on an electronic computer, the efficiency with these approximate expressions deduced from Chebyshev polynomial, for example, for the calculation of the meridian length …
在同一电子计算机上利用这些数值逼近公式，其计算速度，以子午线孤长正反算为例可比相应的同精度的经典方法提高五倍至数十倍。
Working on an electronic computer, the efficiency with these approximate expressions deduced from Chebyshev polynomial, for example, for the calculation of the meridian length …
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