Article 60 the captain of a ship of international voyage is required to apply to the health and quarantine organ for inspection of rat damage every 6 months.
第六十条国际航行船舶的船长，必须每隔6个月向卫生检疫机关申请一次鼠患检查，卫生检疫机关根据检查结果实施除鼠或者免予除鼠，并且分别发给除鼠证书或者免予除鼠证书。
The studies on the activity rhythm of rats have an important significance to the effective prevention of rat damage as well as the comprehensive measures in controlling rats.
研究鼠类活动节律，对于更有效地控制和综合治理鼠害具有重要意义。
The small Indian mongoose, reaching no more than a foot or two inheight, was originally brought to Puerto Rico and the Hawaiian islandsto protect sugar cane fields from rat and snake damage.
小印度猫鼬不到一二英尺高，原先引入波多黎各和夏威夷群岛，是为了保护甘蔗田免受老鼠和蛇的伤害，结果，猫鼬没有起到控制物种拥挤的作用，其危害却迅速地远远超过预期的野生动物危害。
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