To some degree, this reflects the lack of sophistication in the discipline and the lack of facility that most architects have with analytical techniques.
在一定程度上，这反映出了大部分架构师在分析技巧方面缺乏经验和相应的能力。
2
The principles of virtual work for deformable bodies can be obtained with facility by taking advantage of the well known principle of virtual displacement in analytical mechanics.