Initially the lightest artillery piece available for the support role was the obsolescent Czech Skoda-built 7.5cm Gebirgskanone 15 which had been designed for mountain troop use.

• 依照你对这句句子的翻译恐怕上外英语系系主任都要甘拜下风。。。。。。你是从哪儿看出这句话中有“由于当时炮兵没有可以使用的合用的火炮”的意思的？