英语词汇“ring system”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

ring system n. a system of rings; spec. (a) Astronomy one around a planet (cf. sense 7e); (b) Chemistry one in an organic molecule (cf. sense 13e).

ΚΠ

1847 J. Müller Princ. Physics & Meteorol. v. v. 297 The ring system [sc. Newton's rings] is most beautifully exhibited in several uni- and bi-axal crystals.

1865 R. A. Proctor Saturn & Syst. iii. 58 Pound,..using an excellent micrometer, considered that the breadth of the ring-system was even somewhat less than the breadth of the space between the planet and the rings.

1926 H. G. Rule tr. J. Schmidt Text-bk. Org. Chem. iii. iii. 578 The ring system of the iminazoles, like that of the pyrazoles, consists of three carbon and two nitrogen atoms.

1954 Househ. Guide & Almanac (News of World) 27/2 Quite moderate optical aid will show its [sc. Saturn's] beautiful ring system.

1960 Acta Crystallogr. 13 553 Ibogaine..is an alkaloid in which an indole ring system is attached to a seven-membered nitrogen containing ring.

2007 E. D. Miner et al. Planetary Ring Syst. v. 70 There have been changes in Neptune's ring system since the Voyager 2 encounter.

单词	ring system
释义	> as lemmas ring system ring system n. a system of rings; spec. (a) Astronomy one around a planet (cf. sense 7e); (b) Chemistry one in an organic molecule (cf. sense 13e). ΚΠ 1847 J. Müller Princ. Physics & Meteorol. v. v. 297 The ring system [sc. Newton's rings] is most beautifully exhibited in several uni- and bi-axal crystals. 1865 R. A. Proctor Saturn & Syst. iii. 58 Pound,..using an excellent micrometer, considered that the breadth of the ring-system was even somewhat less than the breadth of the space between the planet and the rings. 1926 H. G. Rule tr. J. Schmidt Text-bk. Org. Chem. iii. iii. 578 The ring system of the iminazoles, like that of the pyrazoles, consists of three carbon and two nitrogen atoms. 1954 Househ. Guide & Almanac (News of World) 27/2 Quite moderate optical aid will show its [sc. Saturn's] beautiful ring system. 1960 Acta Crystallogr. 13 553 Ibogaine..is an alkaloid in which an indole ring system is attached to a seven-membered nitrogen containing ring. 2007 E. D. Miner et al. Planetary Ring Syst. v. 70 There have been changes in Neptune's ring system since the Voyager 2 encounter. extracted from ringn.¹ < as lemmas
随便看	downticks downtide downtime downtimes downtoearthiness downtoearthness downtoner downtonian downtools downtown downtown quarterback downtowner downtowners downtownest downtowns downtread downtreading downtrend downtrends downtrod downtrodden downtroddenness downturn downturned downturns

> as lemmas