1、The new safety level is about 100 times higher than the background level of dust at ground level.
新的安全水平比地平面灰塵背景水平高出一百倍，也比從火山爆發(fā)以來測試飛機在英國上空所測的數(shù)據(jù)要高很多。

2、Solving the problem properly is meaningful for improving the safety level on the road.
妥善解決這一問題對于提高道路交通安全水平具有重要意義。

3、The quality safety level of agricultural products shall be fully increased.
全面提高農(nóng)產(chǎn)品質(zhì)量安全水平。

4、Secondly, the paper evaluated safety level of ship operation.
對船舶營運安全水平進行評估。

safety level翻譯