词汇	Nb ingot
释义	Nb ingot 铌锭
随便看	economic forces economic forecast Economic forecast and decision making economic forecaster economic forecast for buildings economic forecasting economic-forecasting economic forecasting method economic forecasting of new products economic-forecasting tool economic forecast projection economic forecasts economic forest economic forest for soil and water conservation economic forest industry economic forest of dry fruits economic forest product economic forestry economic forests economic form economic formation economic formation of society economic formations economic formations of society economic form evolution