色欲tv国产亚洲_久久午夜夜伦鲁鲁影院_一级特黄无码A片在线观看_免费黄色性感一级片_国内破女处破苞视频hd_欧美三级少妇免费_亚洲美腿丝袜福利一区_白丝秘书被躁到高潮视频av_91麻豆精品分享的内容是很丰富的_国产原创免费av网站

首頁英語詞典pyrotechnicpyrotechnic的意思

pyrotechnic

英 [,pa?r?(?)'tekn?k] 美[,pa?r?'t?kn?ks]
  • adj. 煙火的;令人眼花繚亂的;出色的

詞態(tài)變化


名詞:?pyrotechnics;

中文詞源


pyrotechnic 煙花

pyro-,火,-technic,技術(shù),詞源同technology.

英文詞源


pyrotechnic
pyrotechnic: [18] The Greek word for ‘fire’ was pūr (it came from the same prehistoric Indo- European source as English fire). It underlies a range of English words, including pyracantha [17] (etymologically ‘fire-thorn’), pyre [17], pyrethrum [16], and pyrites [16]. Pyrotechnic itself was derived from an earlier pyrotechny, which was originally used for the ‘manufacture of gunpowder, firearms, bombs, etc’. The application to ‘fireworks’ did not emerge until the 17th century.
=> fire, pyre, pyrites
pyrotechnic (adj.)
1704, "of or pertaining to fire;" 1825, "of or pertaining to fireworks," from pyro- + Greek tekhnikos "made by art," from tekhne "art" (see techno-). Figurative use attested from 1847. Related: Pyrotechnical (1610s, from pyrotechny "use of gunpowder," 1570s).

雙語例句


1. A method for determination of perchlorates content in pyrotechnic compositions was established.
目的〕研究建立測定煙火藥劑中高氯酸鹽含量的方法.

來自互聯(lián)網(wǎng)

2. A pyrotechnic its frequent than find another pyrotechnics.
與其流連一場煙火,不如尋找另一場煙火.

來自互聯(lián)網(wǎng)

3. Over - loading of strong flash pyrotechnic composite was studied by using drop hammer simulation device.
采用大落錘沖擊裝置模擬研究了強閃光煙火藥的過載能力.

來自互聯(lián)網(wǎng)

4. A new kind of pyrotechnic agent above regularities manufactured and compared with exiting pyrotechnic agent.
通過選擇最佳粒徑的材料,制備出新型發(fā)煙劑,并與目前使用的發(fā)煙劑產(chǎn)品作了比較.

來自互聯(lián)網(wǎng)