We analyze the project economical contract liability mechanism that widely used on construction scene in order to answer the question of which mechanism is available.
在采用何种制度才能确实起作用方面，本文结合施工现场广泛做法，分析了项目经济承包责任制。
2
Rail ties may run about the same cost as bricks or blocks, but construction labor savings will make them more economical in the long run.
铁的关系可能会因为对块砖或相同的成本，建设节约劳动力，但令他们更长远的经济。
3
The necessity and importance of establishing the construction jurisprudence as a subject is based on the techno-economical peculiarities of construction, therefore it has its long-term advantage.