但是前述船舶从事营业性运输时，应当按照本规则办理船舶签证。
However, when the aforesaid vessels are engaged in profitable transportation, they shall apply for a vessel visa according to the provisions of the present Rules.
保障营业性道路旅客运输安全是预防重、特大道路交通事故的关键。
Ensuring the safety of commercial passenger traffic was the key to prevent fateful traffic accident.
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