| 释义 |
presspahn Electr. Engin.|ˈprɛsʃpaːn, ˈprɛspɑːn|
Also press-spahn.
[a. G. preßspahn (now -span) pressboard, orig. pieces of card for pressing clothes f. preß- (in comb.) pressed, pressing + span shred, splinter.]
Pressboard (sense 2).
1904Electr. Engineer 14 Sept. 412/2 Creasing ‘fibre, presspahn, etc.,’ destroys the glazed surface..and is..likely to reduce its insulating value. 1913Barr & Archibald Design Alternating Current Machinery ii. 39 Press-spahn, in thin sheets, is largely used for the insulation of low-voltage windings. 1938W. T. MacCall Electr. Engin. I. iii. 38 Many special forms of paper and cardboard, such as presspahn,..are used for moderate pressures. |