“potentially hazardous asteroid”的概念、定义、翻译、参考文献-科学参考

单词	potentially hazardous asteroid
释义	potentially hazardous asteroid Astronomy potentially hazardous asteroid缩写：PHA。潜在威胁小行星
随便看	external calibration external calibration method external capital requirement external cause external cavity surface emitting laser external center of similitude external characteristics external characteristic test external chest compression external coating of fusion bonded epoxy external coating of pipeline external coefficient external-combustion engine external common tangent external composition external composition law external compression inlet external conical refraction external contact external-conversion External corporate entrepreneurship external corrosion direct assessment external corrosion of oil and gas pipeline external counter pulsation and auxiliary circulating device thereof external curvature

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