不发生用英语怎么说？

不发生

• nonoccurrence

例句

• Simply making steel stronger does not necessarily guarantee freedom from laminar tearing. 仅仅增加钢强度并不能保证不发生片状撕裂。
• Each baby needs enough anesthesia to get through the surgery painlessly. 麻药量足才能确保每个婴儿手术中不发生疼痛.
• All gratings shall lie flat with no tendency to rock when installed. 安装时所有的栅栏都是平躺的,摇动时不发生倾斜.
• What would our condors feed on if no one was in danger? 你不发生危险,那我们秃鹰吃啥 呢 ?
• Some occur in organisms without evoking symptoms. 一些存在于生物体中,但不发生症状.
• Astrobiology's goal is to make sure that does not happen. 天体生物学的目标是保证那不发生.