这也许是个极端的例子，但佩恩表的编制者估计所有撒哈拉以南的43个非洲国家的数据误差高达30- 40%。
This may be an extreme case but the PWT reckons that data for all 43 sub-Saharan African countries have margins of error of 30-40%.
在线协作日程表是挑选会议时间，制定最后期限和调整同事误差的最佳方式。
Online collaborative calendars are a great way to pick meeting times, set deadlines and generally gauge a colleague's bandwidth.
20世纪70年代中期，他为SamClutton制作了一块双擒纵机构的表。32天里表的误差没有超过一秒。
In the mid-1970s he made a double-escapement watch for Mr Clutton which, over 32 days, lost less than a second.
如何解决“允许访问控制的误差来源在使用谷歌的字体样式表？”
How to resolve 'Allow control access origin' error while using Google fonts stylesheet?
新型高压电能表必须采用整体误差校验系统来定义准确度等级。
The accuracy grade of novel HVEM must be defined by integrated error calibration system.
为了降低电压表的非欧姆接触所产生的误差，采用屏蔽和适当的接地措施来降低交流干扰。
To reduce error due to voltmeter non-ohmic contacts, use shielding and appropriate grounding to reduce ac pickup.
另外，应该将正交表的至少一列剩余出来作为误差项。
Moreover, at least one column of the orthogonal array should be remained as error term.
摘要：简述了旋转机械对中的意义和测量方法，指出了百分表对中法的主要误差因素及其控制方法。
Abstract: This paper specifies the meaningfulness and measurement method of rotating machinery alignment and points out the main deviation factors of dial indicator alignment and its control method.
计量误差考虑了电度表电压线圈和电流线圈在不同的谐波次数以及谐波大小时的非线性效应。
The metering error considers the non linear effect of the voltage coil and current coil in watt hour meter under different order of harmonics and different distortion degree of input waveform.
本文介绍了一种用百分表测量铝合金金属线胀系数的方法，并对测量结果进行了误差分析。
A method of measuring metal linear expansion coefficient of aluminium alloy by a percent meter is introduced. The error analysis in the result of the measurement is conducted.
在采伐作业设计和伐后验收的蓄积计算上应采用相同的计算方法或编制区域性根径一元材积表，以减少误差。
It should use the same volume calculation method or make one way volume table for felling design and acceptance after felling to reduce errors.
利用这个期间的资料，初步研究了FK_4星表的系统误差和改进光行差常数等问题。
Using the data obtained during this period, the problems of determining the systematic error of FK_4 catalog and improving the constant of aberration are investigated.
对影响中国古代星表数据的各种误差进行了讨论。
A discussion of several errors of the data of ancient star catalogues of China is made.
这些误差源包括热电动势、由射频干扰(RFI)经过整流而产生的偏置量以及电压表输入电路中的偏置量。
These sources include thermoelectric EMFs, offsets generated by rectification of RFI (radio frequency interference), and offsets in the voltmeter input circuit.
通过误差分析，提出了优化的查找表结构。
We propose a optimized structure of table lookup by error analysis in this paper.
在测量一些稳态电压调整率非常小的电机时，会出现测量用电压表的最大绝对误差大于稳态电压调整的范围。
When we measure the electric machines with little steady voltage adjusting rate, the absolute error of the voltmeter reaches out of the range of the steady state voltage adjusting.
介绍了电度表的耐振试验、谐波试验、电压和温度试验的误差数据。
It also introduces the error values of shockproof test, harmonic test, voltage and temperature test.
从分析实际欧姆表测电阻全过程的误差出发，导出测量不确定度的算式，最后得出表尺最佳段范围。
Analyzing the error of ohmmeter in measuring resistance, the measurement formula of uncertainty is derived, and the best measuring range of ohmmeter is obtained.
本文对感应式电能表在谐波状况下的计量误差进行了理论分析和实验研究。
This thesis theory analyzed and experiment researched measure error of induction watt-hour meter base on harmonics.
分析了三轴转台设备误差源；讨论了转台误差对陀螺加速度表测试精度的影响。
The error source of the three-axis turntable is analyzed, which affect the precision of test of pendulous integrating gyro accelerometer (PIGA).
对教材中电流表内阻测量实验方法分析其系统误差，从而对实验方法进行改进。
Amperemeter inner resistance measure experiment method in teaching material analyses the system error and experiment method can be ameliorated.
表的误差率根据摆放位置的不同而略有差别。
The rate of a watch varies slightly depending upon its position.
通过对电能表校验装置的各项误差源的分析，利用数理统计和实验方法对电能表校验装置的不确定度进行分析和计算。
By analyzing each error source of power meter calibration device, the uncertainty of power meter calibration device is analyzed and calculated with mathematical statistics and experimental method.
讨论机电式预付费电能表的误差计算、测定和调整方法。
This paper discusses the error of Mechanical-electronic prepayment meter, its calculation, testing and adjusting method.
介绍了用HP-VEE软件及现有设备实现数字电压表的自动化测试，提高了测量速度，减少了由于人员因素造成的误差。
This paper introduces achievement of an automatic test of he digital voltmeter with HP-VEE software and available equipment to increase the measuring speed, decrease the personal error.
论述贵州现用一元立木材积表存在的问题和误差来源，对原材积式与新材积式进行误差对比及适用性检验。
This paper analyzed errors and their origins in Timber Volume Table (TVT) of Guizhou Province and deemed it imperative to revise TVT.
陀螺加速度表的误差模型的建立对实现有效的误差补偿和可靠地提高惯性系统实用精度提供理论依据。
The establishment of PIGA error model provides a theory basis to implement error compensation effectively and to raised precision of inertial system reliably.
电能计量综合误差是由电压互感器的合成误差、电流互感器的合成误差、电能表的误差、电压互感器二次导线压降所引起的计量组成。
There exits a compound error problem in the electrical measurement, which is composed of PT synthetic error, ct synthetic error, electrical energy measurement error and secondary potential of PT.
本文介绍了0.01或0.02级交流电能表检定装置误差计算器的设计原理，并分析了其测量误差及其改善方法。
This paper introduces the design of error calculator in electrical energy meters testing equipment of 0.01 or 0.02 classes, and analyses the count error and its improvement methods.
探讨了电子式电能表的计量误差，对电子式电能表在谐波条件下的计量误差进行了理论分析和实验研究。
This thesis discuss measure error of electronic watthour meter, theory analyzed and experiment researched measure error of electronic watthour meter base on harmonics.
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