(noun.) the 24th letter of the Roman alphabet.

校對:南森

• I started in to make a number of these lamps, but I soon found that the X-ray had affected poisonously my assistant, Mr. Dally, so that his hair came out and his flesh commenced to ulcerate. 弗蘭克·劉易斯·戴爾. 愛迪生的生平和發明.
• The work done by a boy who raises a 5-pound knapsack to his shoulder would be 5x4, or 20, providing his shoulders were 4 feet from the ground. 伯莎M.克拉克. 科學通論.
• The most conspicuous element in this is the wide-spread acceptance of the X-ray as a necessary tool of the medical profession. 佚名. 神奇的知識之書.
• And this extraordinary number is NEARLY equal to the number of days and nights in a year (365 x 2 = 730); and is therefore concerned with human life. 柏拉圖. 理想國.
• By connecting X to the gas-pipe we drew sparks from the gas-pipes in any part of the room by drawing an iron wire over the brass jet of the cock. 弗蘭克·劉易斯·戴爾. 愛迪生的生平和發明.
• It was to this effect: The black porker's killed--weighed x stone--salted the sides--pig's pudding and leg of pork for dinner. 威廉·梅克比斯·薩克雷. 名利場.
• The approach end of the bed, approximately eighteen feet long, is constructed of maple, with each alternate strip of the 3 x 1-inch bed stock about eighteen inches shorter. 佚名. 神奇的知識之書.
• Near the bottom of the apparatus is a bellows O, which contains a spring tending to keep the lever N, with which it is connected by a rod X, in the position shown. 威廉K.戴維. 智者、化學家和偉大醫生的秘密.
• For the girls, he felt all the contempt due to those who voted plus _x_ minus _y_ a dead bore. 哈里特·威爾遜. 哈里特·威爾遜回憶錄.
• The X-ray was taken at the Ospedale Maggiore and the doctor who did it was excitable, efficient and cheerful. 歐內斯特·海明威. 永別了,武器.
• On the leveling strips at the extreme side of where the bed is to lie, a 3 x 1-inch maple strip is laid, widest side downward, with its finished one-inch edge nearest to the gutter. 佚名. 神奇的知識之書.
• The third doctor, who carried the X-ray plates in their red envelopes, said nothing. 歐內斯特·海明威. 永別了,武器.
• Newspapers and magazines were full of the remarkable X-ray achievements of surgeons in charge of the various European war hospitals. 佚名. 神奇的知識之書.
• The transverse channel through the breech is tapered, and the sliding breech block X is slightly wedge-shaped to fit tightly therein. Edward W. Byrn. 十九世紀發明進展.
• Thus we have (48 + 5 + 27) 100 = 1000 x 2 cubed. 柏拉圖. 理想國.

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