英语翻译帮忙翻译成英文,不要直接翻译软件翻译结果.长沙之最长沙地下文物丰富,其中已出土的商代青铜器300多件,已挖掘的楚

英语翻译
帮忙翻译成英文,不要直接翻译软件翻译结果.
长沙之最
长沙地下文物丰富,其中已出土的商代青铜器300多件,已挖掘的楚墓3000座,铁器241件,汉墓出土文物,超过10000件.重要的考古发现有马王堆汉墓,宁乡炭河里遗址的青铜器,长沙走马楼简牍,春秋战国楚墓,铜官窑等.这表明,长沙作为中国历史文化名城,其文化遗存之丰富,在全国是屈指可数的.
以下列举重要历史纪录.
世界最早的铸铁件——春秋晚期铁凹形锄和铁鼎,铸造于春秋晚期（约前6、7世纪）.
世界最轻的丝织品——素纱襌衣,长沙马王堆出土.重仅49克（一说48克）,由于丝纤度非常细,现代工艺无法仿制.
世界最早的印花织物——印花绸被面,战国楚墓出土.
世界最早的毛笔——长沙左家公山出土,制作于战国时期.
世界最早的天文学著作实物——西汉《五星占》和《天文气象杂占》,长沙马王堆出土.
世界最早的釉下彩瓷器——长沙窑出土,长沙窑也因此被认为是釉下彩发源地.
世界最多的简牍出土——长沙走马楼一次出土三国吴简14万余枚,超过历年出土的简牍数量之和.中国最早的钢制品——春秋晚期钢剑,长沙杨家山出土.
中国最早的性医学著作——马王堆汉墓房中书,有《十问》、《天下至道谈》、《合阴阳》等共六种.
中国最大的商代铜铙——商代象纹大铜铙,宁乡出土,重220.76公斤.
中国最大的商代方尊——四羊方尊,宁乡出土,高58.3厘米,重约34.5公斤.
中国最大的商代铜瓿——宁乡出土.通高62．5厘米,口径58厘米,腹径89厘米,重55公斤.
中国最早的金属称量货币——1959年宁乡出土的商代铜铙中藏有224只小青铜斧,具有货币功能.
中国第一条标准的汽车公路——长潭（长沙至湘潭）公路,于1913年修建.
中国规模最大、数量最多、保存最完整的汉代诸侯国王陵——汉长沙国王陵区.
世界第一跨——长沙洪山大桥主桥结构形式为无背索斜塔斜拉桥,主跨206米,跨下没有一个桥墩,比“第二跨”西班牙阿拉米罗桥长出6米

以下是经金山词霸翻译,本人稍加修改.如遇错误,请见谅.
The Changsha Best
Changsha underground rich heritage,the Shang Dynasty bronze has been unearthed more than 300 pieces,has been excavated tombs were 3000,iron 241,more than 10000 pieces of cultural relics unearthed in tomb.Important archaeological discoveries have Han Tombs at Mawangdui,Ningxiang charcoal river site of bronze,Changsha zhoumalou bamboo,spring and autumn and the Warring States Chu,Tongguan kiln etc..This shows,Changsha as a historical and cultural city in China,the cultural relics in the country is rich,can be counted on one's fingers.
The following list of important historical record.
The world's first iron -- the late spring and Autumn Period iron concave hoe and iron tripod,cast in the late spring and Autumn period (BC 6,seventh Century).
The lightest silk world -- Plain gauze Dancheng vests,Changsha unearthed in Mawangdui.Weighing only 49 grams (about 48 grams),because the silk size is very fine,modern technology can not copy.
The world's first printing fabric -- printed silk quilt cover,Chu tombs unearthed.
The world's first brush -- Changsha from zuojiagongshan unearthed,making in the Warring States period.
The world's first astronomy book -- the real "five-star" and "astronomical weather clutter for" unearthed in Mawangdui,changsha.
The world's first underglaze porcelain -- Changsha kiln unearthed,Changsha kiln is therefore considered to be the birthplace of under glaze.
The world's largest bamboo slips unearthed -- Changsha zouma floor once unearthed more than 14 pieces of the Three Kingdoms Wu Jian,more than the number of calendar year and bamboo slips unearthed.Steel -- the late spring and Autumn Period steel sword products of China's earliest unearthed in Changsha,yang.
The earliest Chinese medical books -- Mawangdui tomb real book,is "in","the world to talk on the" Yin and Yang "," a total of six.
China's largest Shang Nao -- like grain big Nao Shang Dynasty,unearthed in Ningxiang,weight 220.76 kg.
China the largest statue of Shang Dynasty -- four sheep to respect,from Ningxiang,height 58.3 cm,weighing about 34.5 kg.
China's largest copper vase -- Shang Dynasty unearthed in Ningxiang.62.5 cm high,58 cm diameter,abdominal diameter 89 cm,weight 55 kg.
The earliest Chinese metal weighing currency -- with 224 small bronze axe Nao Shang Dynasty unearthed in Ningxiang in 1959,has the functions of money.
China's first standard car road -- Long Tan (Changsha to Xiangtan Road,built in 1913).
China,the largest number of the largest,most complete preservation of the Han Dynasty tomb of Han Changsha country -- the king's tomb.
The world's first - -- Changsha Hongshan bridge structure in the form of no back-stays & inclined pylon cable-stayed bridge,the main span of 206 meters,down without a pier,than the "second -" Spanish Aramaic Luo Bridge length 6 meters.