词汇	Natural gas industry
释义	Natural gas industry 天然气工业
随便看	principal coordinate planes principal coordinates principal-coordinates Principal Coordinates Analysis principal coordinate system principal crest principal criminal principal crop principal crossed homomorphism principal cross section principal cross-section principal crystalline phase principal crystallographic axis principal cubic root principal culprit principal culture principal cure principal currency principal current principal current characteristic principal curvature principal curvature function principal curvature of a surface principal curvature of surface principal curvature radius