gravity nullifying effect

例句：

1. 1.The new policy aims to nullify the negative effects of pollution.
   新政策旨在抵消污染的负面影响。
2. 2. The company's efforts to nullify the damage caused by the accident have been successful.
   公司努力中和事故造成的损害已经成功。
3. 3. The scientist used a nullifying agent to neutralize the acid.
   科学家使用了一种中和剂来中和酸。