structure body造句

According to structure character of rock (coal) pillar of maintaining roadways, concepts of weak geometry structure roadways and weak structure body are brought forward in this paper.

The structure body is of an Angle iron or a shelf bracket.

Based on structure features of layer rock mass which has thin layer in roadsides, the concepts of thin layer weakness structure in roadsides and weak structure body has been put forward by this paper.

The measurement of radiation noises from an underwater structure body and identification and location of noise sources were carried out by using a sound intensity measurement system .