Hf sentence example
A saturated solution of the gas, in water, is a colourless, oily, strongly fuming liquid which after a time decomposes, with separation of metaboric acid, leaving hydrofluoboric acid HF BF3 in solution.
Now if the notch of the tan gent sight be carried to H' in order to lay on T, the fore-sight, and with it the axis, H will be moved to F', the line of fire will be HF'D', and the shot will strike T since D'T = DT.
Only one compound of hydrogen and fluorine is known, namely hydrofluoric acid, HF or H 2 F 2, which was first obtained by C. Scheele in 1771 by decomposing fluor-spar with concentrated sulphuric acid, a method still used for the commercial preparation of the aqueous solution of the acid, the mixture being distilled from leaden retorts and the acid stored in leaden or gutta-percha bottles.
The HF lift controls in the equalizing amplifier should then be able to be set to a lower level.
But " Sic transit Gloria " when cables and satellites came on the scene the HF systems closed down one by one.Advertisement
The convection electric field during this interval is measured in the high-latitude ionosphere using the northern hemisphere SuperDARN HF radar network.
Success in treating human sepsis with a recombinant product indicates possible utility for EBOV HF.
Merged velocity vectors from two Antarctic HF radars describe the flow velocity variation in the boundary region.
Most of the HF aerials post-war were rhombic patterns.
The unit is a HF frequency transceiver originally designed for use with Sonardyne 's shallow water USBL system, Scout.Advertisement
Gas flow meter fitted Electronic HF to start the welding arc.