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世界最大的船闸长江葛洲坝二号船闸,长280米,宽34米,可通过万吨轮,是目前世界上最大的船闸。该船闸的下游人字闸门有两扇,每扇比一个蓝球场还大,两扇门合起来重1184吨,也是世界上最大的闸门。世界上计算速度最快的“快速计算法” “快速计算法”为中国速算专家史丰收首创。此法运用口诀的形式,直接从高位数算起,随口报出计算结果,可计算26位数以内的加、减、乘、除、乘方、开方,具有速度快、答数准确的优点。这种快速计
The largest lock in the world The 2nd lock on the 2nd Gezhouba Dam in the Yangtze River, 280 meters long and 34 meters wide, can pass the 10,000-tonne round and is the largest ship lock in the world at present. There are two gates at the lower part of the ship's gate, each one bigger than a basketball court. Together, the two doors weigh 1,184 tons, making it the largest gate in the world. The fastest computing speed in the world “fast calculation method ” “fast calculation method ” for the Chinese fast calculation expert Shi Feng first. This method uses the form of formulas, directly from the high count, reported casually calculated results can be calculated within 26 digits plus, minus, multiply, divide, square, prescribing, with fast, accurate answer advantages . This fast meter