origin n. 1.開始,發(fā)端;根源,起源;起因,由來。 2.出身,來歷;血統(tǒng)。 3.【數(shù)學(xué)】原點;起點;【解剖學(xué)】(筋、神經(jīng)的)起端。 He is a Dane by origin. 他原籍丹麥。 He comes of Scottish origin. 他的祖先是蘇格蘭人。 country of origin 原產(chǎn)地。 of worker and peasant origin 工農(nóng)出身的。
mechanical adj. 1. 機械的;機械制的。 2.機械學(xué)的,力學(xué)的;物理上的(opp. chemical)。 3.機工的,技工的;自動的;機械(地工作)的,無意識的;勉強的。 4.【哲學(xué)】機械論的。 5. 〔古語〕粗野的。 a mechanical brake 機力制動器。 a mechanical stoker (自動)加煤機。 mechanical labour 體力勞動。 mechanical equivalent of heat 【物理學(xué)】熱功當量。 mechanical drawing 機械制圖。 mechanical energy 機械能。 mechanical movement 機械運動。 mechanical power 機械功率。 mechanical resistance 【物理學(xué)】力阻。 mechanical tissue 【植物;植物學(xué)】機械組織。 the mechanical transport 【英陸軍】汽車運輸隊〔略 M.T.〕。 adv. -ly 機械地;無意識地;用機械。 n. -ness 機械性,自動。
Production systems including manipulating industrial robots . prevention of accidents of mechanical origin 包括工業(yè)機器人操作的生產(chǎn)系統(tǒng).機械成因事故的預(yù)防
Semi - fixed triming machines for wood and similar materials . prevention of accidents of mechanical origin 木材和同類材料用半固定式修邊機.機械引起事故的預(yù)防
Semi - fixed circular sawing machines for wood and similar materials . prevention of accidents of mechanical origin 木材和類似材料加工用半固定圓鋸機.機械引起事故的預(yù)防措施
The mesoproterozoic mafic dyke swarms are extensively distributed in the central north china craton , which are not deformed and metamorphic , emplacing the pre - existed fractures , so the dyke swarms become the conspicuous marks to reconstruct the mesoproterozoic tectonic stress field of the central ncc . the mafic dykes in the northern block are transtensional while the dykes in the central and southern blocks are extensional . the mesoproterozoic tectonic stress field could be simulated on the analysis of the distribution and mechanical origin of the mesoproterozoic mafic dyke swarms in the central ncc . the simulation result shows that the mafic dyke swarms were formed in the extensional tectonic setting in the ncc in the mesoproterozoic time , which are related to the extension of the mesoproterozoic yanliao - zhongtiao aulacogens cross the central ncc 克拉通北部地塊的鎂鐵質(zhì)巖墻群為張剪性,而中部和南部地塊為張性。根據(jù)華北克拉通中部中元古代鎂鐵質(zhì)巖墻群的分布和成因機制分析,來恢復(fù)模擬中元古代的構(gòu)造應(yīng)力場。數(shù)值模擬結(jié)果表明鎂鐵質(zhì)巖墻群在中元古代形成于伸展的大地構(gòu)造背景,與橫穿華北克拉通中部的燕遼-中條拗拉槽系的伸展作用有一定的聯(lián)系。