基本解释

• [航空、航天科学技术]为预防起见

英汉例句

双语例句

• His cunning began here; he smiled habitually, by way of precaution, and was almost polite to everybody, even to the beggar to whom he refused half a farthing.
  他为了防备他人而脸上经常带笑，几乎对所有的人，即使对一个向他讨一文钱而不得的乞丐，也都客客气气。

专业释义

航空、航天科学技术

• 为预防起见