with the increase of extra-long tunnel construction, obviously, the empirical value can not keep up with the actual. so it needs to work out a method for natural wind computation.
随着特长隧道建设工程的增多,经验取值显然与实际不符,有必要建立一套隧道内自然风计算方法。
solvent selection methods of extractive distillation, such as experimental method, databank inquiry method, empirical value method, and computer aided molecular design method, are reviewed.
therefore, to discuss the improvement of this legal system is necessary for theoretical and empirical value .
因此,探讨完善海上人身损害赔偿法律制度,具有重要的理论意义和现实意义。
by comparing with the empirical value of the actual engineering practice, revision was made in settlement calculation by jccad to make foundation design more reasonable.