在理論上,無阻尼時(shí)將引起無盡的諧振響應(yīng).Theoretically the absence of damping results in an infinite response at resonance.燃燒室內(nèi)的固體顆粒可能引起強(qiáng)烈的阻尼效應(yīng).Strong damping effects are possible because of solid particles in the chamber.阻尼網(wǎng)的阻力損耗在幾乎所有的裝置中都是...
Although disabled by polio during the Second World War, Proctor was also a first-rate helmsman.二戰(zhàn)期間盡管身患小兒麻痹癥,普羅克特仍不失為一流的舵手。The old helmsman brought us about and we avoided a dangerous dash against the rocks.老舵手掉轉(zhuǎn)了船的航向, 我...
英屬維爾京群島(The British Virgin Islands),位于大西洋和加勒比海之間,加勒比海背風(fēng)群島的北端。面積153平方公里。人口1。98萬(2000年估計(jì))。主要是黑人。通用英語。多數(shù)人信奉基督教。1672年被英國兼并。1872年成為英國殖民地背風(fēng)群島的一部分,受背風(fēng)群島總督管轄至1960年。首府羅德城(Road Town)...
The odds against him surviving are incredible.他活下來的概率非常小。The London Gazette, the oldest surviving journal, is first published.1665年的今天, 現(xiàn)存最古老的一份期刊 —— 《倫敦公報(bào)》首次出版發(fā)行.The chances of his surviving are pretty remote.他生還的機(jī)會(huì)非常渺茫...