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单词 sump fuse
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sump fuse
sump fuse n. Mining a waterproof fuse used in underwater blasting.
ΚΠ
1833 Freeman's Jrnl. (Dublin) 27 Aug. For wet holes, Sump Fuze and Waterproof Chargers may be had, by the use of which Rocks may be blasted with ease several feet under water.
1840 Mechanics' Mag. 26 Dec. 603/2 Having placed the cartridge bag with the necessary quantity of powder therein and sump fuse attached, in the hole, a sufficient quantity of sand..is to be poured in to fill the hole.
1950 Sydney Morning Herald 7 Oct. 15/3 (advt.) Heavy pistons, liners, and crank-shafts...5 cases blue sump fuse (34290ft) and various other items.
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