HVAC professional and are building developer issues of mutual concern.
是暖通专业及建筑开发商共同关注的问题。
Opening technical exchange hotline, professional answer about heat treatment and all kinds of steel issues.
开通技术交流热线，专业解答有关热处理及各种钢材问题。
Research on occupational stress has become basic issues which professional medical pay widespread attention to.
对职业紧张的研究，已成为职业医学界广泛关注的基础性议题。
Research on occupational stress has become basic issues which professional medical pay widespread attention to.
对职业紧张的研究，已成为职业医学界广泛关注的基础性议题。
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