请翻译：提高那些有实力的客户的忠诚度将有利于增加行业整体的销量。

Enhance the loyalty of clients that have strengthes is beneficial to increase the sales of the entire industry.

It's advantageous to increase the whole sales volume of profession to enhance loyalty of these customers who have strength .

to promote those leading client's loyalty could be helping to increase the sale amount of the whole industry