为保证安全生产,对首采面进行了跟踪观测。
To ensure safe production, the first mining face is tracking observed.
认知损害使诊断复杂,为保证安全需要更多的照料。
Cognitive impairment complicates diagnosis and requires additional care giving to ensure safety.
我把我的单车放了下来,为保证安全把车锁捡了起来。
I laid my bike down and picked up the bick lock from the ground for protection.
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