主题：【原创】决定二战胜负的科技 -- 正宗鲁皮皮

Canada supplied the design for a dependable power supply, which had to have long storage life but produce instant power to the little radio transmitter as the shell left the gun.

Regular tiny batteries, with their limited shelf life, were useless, but scientists at the National Research Council in Ottawa, working with industrial scientists in Toronto, produced the answer: a battery that would remain dormant until activated by acid from a tiny vial broken within the fuse by the shocking wham of the propellant charge sending the shell on its way.

Blackburn, George G. Where The Hell Are The Guns? (McClelland & Stewart, Inc., Toronto, ON, 1997) ISBN 0771015046 Appendix J