【简答题】根据课文内容将下列短文译成中文。 CAD has many roles to play in the world of engineering ,such as :the applications of computer systems to the production or engineering drawings ;the use of finite element techniques...
【判断题】There are many kinds of substation engineering drawings, including main wiring, secondary wiring, substation layout, substation sectional drawing, principle and layout of high-voltage switchgear, etc.