单词	北方海狗
释义	北方海狗Callorhinus ursinus
随便看	positive-pressure exhauster positive pressure filtration system positive pressure flow field positive pressure seal line positive pressure suit positive-pressure ventilation positive primary photoelectric current positive print positive program positive psychology positive pyritohedron positive quadrant dependence positive quantity positive quantity (algebra) positiver positive rain positive rake [angle] positive rake tip positive ray positive rays positive rays,canal rays positive rays--canal rays positive rays;canal rays positive reaction positive reactivity