而较轻型
And lighter
以上为机器翻译结果，长、整句建议使用 人工翻译 。
在英国，重装甲保护的“步兵坦克”被用来给步兵提供机动的火力支援。而较轻型的“巡洋坦克”被用来替换已经明显过时的骑兵。
In Britain, well armored "infantry tanks" were developed to provide the infantry with mobile fire support, and lighter "Cruiser tanks" were developed to replace the obsolete Cavalry.
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