technical             
adjective uk/ˈtek.nɪ.kəl/ us/ˈtek.nɪ.kəl/
B2 技术的
relating to the knowledge, machines, or methods used in science and industry
  a few technical problems 几个技术问题 
  专门性的
relating to the knowledge and methods of a particular subject or job
  Personally, I found some parts of the book a little too technical to follow. 我个人认为,书中有些部分过于专业化,一般人不易看懂。 
 B2 技能的,技巧的
relating to practical skills and methods that are used in a particular activity
  In her performance as the Snow Queen she showed great technical brilliance. 她演冰雪女王时展示出了高超的演技。 
 - More examples
 - The space shuttle remained earthbound because of a technical fault.
 - The instruction booklet is written in very technical language which is almost impossible to understand.
 - Before she could begin the project she had to work her way through the huge amount of technical papers.
 - There are still a few technical problems to be dealt with before the product can be put on sale to the public.
 - He currently holds the position of technical manager.