Temporary blind flange thickness calculation for hydrostatic test
法国大律师兰盖曾提出法律的精神是所有权的命题。这一命题表明，确认所有权、财产权是法律的直接宗旨。
The well-known proposition that " the spirit of law is the ownership " states the primary purpose of law is to define the ownership and property right .
兰盖