亚历山大·格雷厄姆·贝尔是发明家及飞行术先驱。图为1930年代，他帮助一个男孩在一架西科斯基s -38水陆两栖飞行器的浮筒上保持平衡。
Alexander Graham Bell, inventor and aviation pioneer, helps a boy balance on the pontoon of a Sikorsky S-38 amphibious aircraft in the 1930s.
目的了解武汉城区居民住宅、一般单位、重点单位室内家栖鼠种群构成。
Objective To investigate indoor commensal rodent population structure in populated area, general institutions and emphasis institutions indoor in Wuhan.
目的探讨家栖鼠对抗凝血杀鼠剂的抗药性变化。
Objective To study the anticoagulant rodenticide resistance in commensal rodents.
目的通过分析长春市家栖鼠传播肾综合征出血热（HFRS）特征，为科学指导HFRS防制提供依据。
Objective By analysing the characteristics of transmitting hemorrhagic fever with renal syndrome(HFRS) of Rattus in Changchun district to provide scientific basis for controlling HFRS in Changchun.
鸭嘴兽的家可以在水中，也可以在陆上。它是两栖动物。
At home both in water and on land, the platypus is amphibious.
目的分析长春市的家栖鼠类群落结构特征，为鼠害控制提供依据。
Objective to analyse the characteristics of the community structure of Rattus and to provide scientific basis for rodent control in Changchun.
结论：2种家栖鼠对抗凝血灭鼠剂耐药力增强，有产生抗药性的趋势。
Conclusions: It was indicated that the resistances of anticoagulants to 2 sorts of commensal rodents were enhanced and there was a tendency that anticoagulants for rodents would get resistance.
目的掌握褐家鼠对抗凝血灭鼠剂的抗药性情况，为家栖鼠的控制提供依据。
Objective We tested the resistance of Rattus norvegicus to anticoagulant rodenticide in Changchun to provide evidence for rodent control.
目的探讨家栖鼠对抗凝血灭鼠剂的抗药性变化。
Objective To study the resistant development of anticoagulant rodenticide in commensal rodents.
目的探讨家栖鼠对抗凝血灭鼠剂的抗药性变化。
Objective To study the resistant development of anticoagulant rodenticide in commensal rodents.
应用推荐