很多都因为环境污染、栖息地丧失、人类活动造成的相关问题，而处于濒临灭绝的危险。

Many are endangered and in places that are threatened by pollution, habitat loss and other human-related problems.

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改善的安全：弧不滑下并且附上的真空阻碍者以被密封的联络消灭潜在危险起因于被暴露的弧或环境污染。

Improved Safety: No arc chutes and enclosed vacuum interrupters with sealed contacts eliminate potential hazards resulting from exposed arcs or environmental contamination.

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海事部门对载运散装液体危险化学品船舶的监管目标是作业安全与防止海洋环境污染。

The goal of supervising bulk liquid dangerous chemicals ship by Maritime department is to prevent Marine environmental pollution.

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