sonic apparent formation factor
声波视地层因素

Literariness is the necessary factor for the formation of literature.
摘要文学性是文学形成的必备条件。

Burr formation is an important factor of influence to metal cutting quality.
毛刺是影响金属切削加工质量的主要因素之一。

Rainfall runoff is the main factor affecting the formation of nonpoint pollution.
降雨径流是形成非点源污染的主要影响因素。

The branch of Kuroshio is the direct dynamic factor of the formation of this eddy.
黑潮分支大约是该涡旋的主要动力因子。

The time factor and individual circumstances are the main reason for its formation.
时代因素和个人遭际是这种气质形成的主要原因。

The formation mechanism and influencing factor of the duplex structure have been studied.
探讨了这种复相组织得形成机理和影响因素。

The analysis of the effects of atmospheric ammonia on the formation of secondary particles in Beijing indicated that NH3 concentrations in atmosphere is the key factor in the formation of secondary particles in spring, autumn, and winter in Beijing.
大气氨浓度是北京春秋冬3季生成二次粒子的主控因子。