twice firing

基本解释

MESSENGER is scheduled to fly past Mercury twice more before firing its thrusters to enter orbit in 2011.
2011年在MESSENGER飞船点燃推进器进入水星轨道之前，预计它还将飞越水星两次以上。
blog.sina.com.cn
Firms think twice about firing, and governments are keener to provide in-work subsidies if it means avoiding payouts to the newly jobless.
企业会对炒员工鱿鱼思考再三，并且政府更热衷于为在岗工人提供津贴，这意味着避免了给新失业者发放补助。
As more Alawites and other fence-sitters step forward to join the protesters, the security forces will think twice about firing on unarmed civilians.
当更多的阿拉维派教徒和其它中立人士加入游行的时候，安全部队要向人群射击的时候就要考虑再三了。
blog.sina.com.cn

Firms think twice about firing, and governments are keener to provide in-work subsidies if it means avoiding payouts to the newly jobless.
ECONOMIST: Productivity growth
The already-injured Captain Seog survived being shot four times, including twice in the abdomen, by pirates firing in revenge.
FORBES: Korean Ship Captain Honored for Extraordinary Bravery at Sea

二次烧成
Ceramics glazed tile is important constitute part of architectural pottery, which possess solidity wear, fireproof, waterproof performance and decorate quality. Its traditional manufacture way was adopt twice firing technics.
陶瓷釉面砖是建筑陶瓷的重要组成部分,它具有坚固耐久、防火、防水的性能和装饰建筑等优点,其传统生产方法是采用二次烧成工艺,既先在1200～1280℃进行素烧,然后经施釉在1150～1200℃进行釉烧。
材料科学
二次烧成