تعدين الفحم Translation into English examples Arabic Reverso
An estimated 5 million people work in China's coal-mining industry. وفي تعدين الفحم. In the coal-mining industry for example, such measures as wetdrilling, spraying and wetting of dust sources, rock-face rinsing and ventilatorcleaning have been actively enforced for years, thus bringing ambient dust levels down by between 68 and 89.5 per cent. العيب الثاني
