求翻译：山东航空公司发展非常迅速，自2005年以来每年引进6至10架最新型波音737-800、737-700型客机，“十二五”期间飞机总量将超过100架，标志着山航已步入大型航空公司行列。是什么意思？

Shandong Airlines has developed rapidly, each year since 2005 to introduce 6-10 new aircraft Boeing 737-800,737-700, "five-second" period will total more than 100 aircraft, marking has been step Shandong Airlines into the ranks of major airlines.

Shandong Airlines to develop very quickly, and since 2005 has been introduced each year 6 to 10 most new Boeing 737 -800, 737 -700, "35 passenger aircraft will total more than 100 aircraft during " framework, marked the Shandong Aviation has further into the major airlines.

The Shandong airline develops extremely rapidly, every year has introduced 6 since 2005 to 10 newest Boeing 737-800, 737-700 passenger plane, “35” the period airplane total quantity will surpass 100, symbolized Shan Hang marched into the large-scale airline ranks.

Shandong Airlines develop very rapidly, and since 2005 a year of 6 to 10, 737-800 new Boeing aircraft, "Twelve-Five" aircraft during a total of more than 100, marking the mountain has entered the ranks of the big airlines.

Shandong Airlines has developed rapidly, each year since 2005 to introduce 6-10 new aircraft Boeing 737-800,737-700, "five-second" period will total more than 100 aircraft, marking has been step Shandong Airlines into the ranks of major airlines.