In traditional methods geometrical quantity is measured by using spatial referencequantity, and the relationship between measured quantity and referencequantity is space-to-space.
传统几何量计量中一般以空间量作为基准量,被测量与基准量之间是空间对空间的关系。
2
Seller and Buyer hereby agree to deliver and accept the above quantity in partial shipments, with reference to provisions set out in clause 4.
卖方和买方特此同意提供并接受上述分批装运的数量,参考第4条的规定。
3
By comparing the heating effect of an unknown AC signal to that from a known DC reference, metrologists can determine the RMS AC quantity (voltage or current) in terms of the DC quantity.