long-standing issue meaning in Chinese

由来己久的问题

Long - standing issue
由来己久的问题
Among his many contributions to the field of turbulent thermal convection , his work in high prandtl number heat flux measurement played a pivotal role in settling a long - standing issue in the field
他在湍流热对流领域中有著众多的贡献，尤其是关于高普朗德数下湍流传热方面的实验研究，此研究对于解决这个领域中长期未决的问题起了极为关键的作用。
In addition , the department will also provide assistance to promoting awareness of long - standing issues and civic responsibilities such as civic education , occupational safety , slope maintenance , aids awareness , electrical products safety and against child abuse
此外，政府新闻处亦协助进行有关公民责任的宣传工作，以及推广其他长期备受关注的事宜，例如公民教育职业安全斜坡维修预防爱滋病安全使用电器产品及防止虐待儿童等。
In addition , the department will also provide assistance to promoting awareness of long - standing issues and civic responsibilities such as civic education , occupational safety , slope maintenance , aids awareness , electrical products safety and against child abuse
此外，政府新闻处亦协助进行有关公民责任的宣传工作，以及推广其他长期备受关注的事宜，例如公民教育、职业安全、斜坡维修、预防爱滋病、安全使用电器产品及防止虐待儿童等。