The difference of the ballastic throws taken with the two coils measured the intensity of the field in the space around the iron, and it also enabled a correction to be made for the nonferrous space between the iron neck and the centre of the thickness of'the inner coil. [Please select]
0
In any case, the development of deep-mining methods had clearly made considerable progress in nonferrous mines when the _De re metallica_ was written, in 1556. [Please select]
Do you have a better example in your mind? Please submit your sentence!