of or relating to earthquakes or other vibrations of the earth and its crust
(与)地震(有关)的。
relating to or denoting geological surveying methods involving vibrations produced artificially by explosions
(与)地震勘测(有关)的。
〈喻〉 巨大的;重大的;有重大影响的
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there are seismic pressures threatening American society .重大的压力威胁着美国社会。
"mid 19th cent.: from Greek