It also sponsors periodic field trips, as well as a user forum on the website.
2.
A periodic field artillery bombardment, swept the ground between the main German trenches and a creeping barrage was planned for the attack.
3.
The metrons also possess a " linear far-field region, which carries the classical gravitational and electromagnetic fields, as well as a high-frequency periodic field that satisfies the de Broglie dispersion relation ."
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