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1)  distance difference limitation
行程差限值
2)  limit D-value
极限差值
1.
After pulley groove and wire rope worn and torn,if the practical D-value between the practical tested pulley groove diameter and the diameter of wire rope is less than the maximum limit D-value between pulley groove diameter and wire rope but larger than minimum limit D-value,ensure wire or less than minimum limit D-value,the wire rope can not work normally.
绳槽、钢丝绳磨损后 ,实际测得的绳槽直径与钢丝绳直径的实际差值 ,若小于绳槽直径与钢丝绳直径间的最大极限差值且大于最小极限差值 ,则确定钢丝绳能正常工作 ;如果实际差值大于最大极限差值或小于最小极限差值 ,可确定钢丝绳不能正常工作。
3)  limit tolerance range
公差限值
4)  tolerance limit of coordinate difference
坐标差限值
1.
In the meantime, the tolerance limit of coordinate difference in the station for site testing is given and it is possible to test total station coordinate traverse in site.
同时 ,根据该原理 ,给出了测站坐标差限值 ,从而实现了全站仪坐标导线的现场检核。
5)  threshold of height
高差限制值
1.
In this paper, the specification of image interpretation bordline demarcation is proven, and the threshold of height in various scales of photo to demarcate the bordline as directline is calculated.
对图像判绘工作边描绘的规定给出了证明 ,并计算了各种比例尺航摄像片工作边描绘成直线或曲线的高差限制
6)  error limits
误差极限值
1.
To improve housing settlement monitoring accuracy,the reasons caused settlement monitoring error and error limits are systematically analyzed,and methods to reduce the errors are proposed.
为提高房屋沉降监测精度,系统地分析了沉降监测误差产生的原因及误差极限值,并提出了减少误差的方法,工程实践表明,采用这些方法进行沉降监测的精度能满足施工要求。
补充资料:电磁辐射限值
分子式:
CAS号:

性质:人体在电磁波照射下人的健康不致受到影响的界限值。中国规定,对于接触电磁辐射作业的作业者,在每天8h工作时间内,任意连续6min照射,全身平均比吸收功率小于0.1W/kg;对于一般公众,在一天24h内,任意连续6min照射全身平均比吸收功率小于0.02W/kg。中国对30~300MHz的超高频辐射和300~300 000MHz的微波辐射还有比较具体的规定。

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