求翻译：A组与B组在呼吸困难和胸痛等临床表现、动脉血氧分压（PaO2）和氧合指数等血气分析指标、心电图、右心扩大和肺动脉收缩压（PASP）等超声心动表现的差异有统计学意义是什么意思？

Group A and Group B in breathing difficulties and chest pain and other clinical manifestations, arterial oxygen pressure (PaO2) and oxygenation index and blood gas analysis, ECG, right heart and pulmonary artery systolic pressure to expand (PASP) and other echocardiographic performance difference st

A B group with group in breathing difficulty and chest pain, and other clinical performance, 140/90 PaO oxygen pressure ( 2) and oxygen index such blood gas analysis indicators, electrocardiogram, right heart enlargement and pulmonary artery systolic pressure (PASP ultrasonic cardiac performance, et

A group with B group in the breath difficulty and chest pain and so on the clinical manifestation, the artery blood oxygen partial pressure (PaO2) and the oxygen gathers courage vigor analysis targets, the electrocardiogram, the right heart expansion and pulmonary artery systolic pressure (PASP) and

Group a and group b in Dyspnea and chest pain, clinical manifestations, arterial oxygen partial pressure (PaO2) and oxygenation index, blood gas analysis, ECG, the expansion of the right heart and pulmonary artery pressure (PASP) are: echocardiography versus performance differences are statistically

Group a and group b in Dyspnea and chest pain, clinical manifestations, arterial oxygen partial pressure (PaO2) and oxygenation index, blood gas analysis, ECG, the expansion of the right heart and pulmonary artery pressure (PASP) are: echocardiography versus performance differences are statistically