1.Financial crimes always have the attributes of covertness, intelligence and professionalism, which are more serious in money-laundering.
金融犯罪具有隐蔽化、智能化、专业化等特点，特别是在洗钱活动中表现得尤为突出。
2.The covertness, permeability and participatory character of foreign political education
国外政治教育的隐蔽性、渗透性、参与性
3.The covertness capability assessment for power plant equipment elements of ship in anti-submarine
反潜中的舰艇动力装置各组件隐身性评估