观测: observe; observation; viewing 短语和例子观测气象 make weather observations; 对 ... 作仔细的观测 make a careful observation of ...; 观测天体 take an observation; 观测报告 observation report; 观测点 observation point;
小型: small-sized; small-scale; miniature; minitype; pocket; pocketsize; compact type 短语和例子充分利用小型资源 make full use of limited resources; 小型公共汽车 [菲] jeepney; minibus; microbus; 小型货车 jubilee truck;
地球: the earth; the globe◇地球扁率 compression [flattening] of the earth; 地球扁球体 earth spheroid; 地球变化磁场 variable magnetic field of the earth; 地球表面 earth surface; 地球波导 terrestrial waveguide; 地球测绘电子学
