ballistics

英 [b?'l?st?ks] 美[b?'l?st?ks]

TEM8

ballistics (n.): 1753, "art of throwing; science of projectiles," with -ics + Latin ballista "ancient military machine for hurling stones," from Greek ballistes, from ballein "to throw, to throw so as to hit," also in a looser sense, "to put, place, lay;" from PIE root *gwele- (1) "to throw, reach," in extended senses "to pierce" (cognates: Sanskrit apa-gurya "swinging," balbaliti "whirls, twirls;" Greek bole "a throw, beam, ray," belemnon "dart, javelin," belone "needle"). Here, too, probably belongs Greek ballizein "to dance," literally "to throw one's body," ancient Greek dancing being highly athletic.

1. The weapons are undergoing ballistics tests to see whether they were used in the shootings.: 這些武器正在接受彈道測試，以確定它們是否曾用于槍擊案中。

2. Ballistics don't match, and his gun was never fired.: 彈道學不匹配, 而且他的槍根本沒有發射過.

3. Ballistics was used in the criminal case to determine the gun's firing capacity.: 在該刑事案件中人們運用彈道學原理來確定槍的發射力.

4. A ballistics expert were taking evidence at the scene of the crime.: 一位彈道學家正在犯罪現場提取證據.

5. Terminal Ballistics deals with the impact of projectiles on a target.: 終點彈道學研究的是射彈的彈著作用.