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- NC-1900arginine-vasopressin fragment analog(NC-1900)
- 雍松，E.O.V.(1900-1976)Eyvind Olof Verner Johnson (1900~1976)
- 高kHigh-k
- 三个海盆都被1900米的等深线所圈闭。All three basins are enclosed by the 1900m depth contour.
- K肥K fertilizer
- 英国作曲家（1842-1900）。English composer (1842-1900).
- （kk
- 美国的大峡谷1900米深。The Grand Canyon in the USA is 1900 metres deep.
- k/nk-out-of-n
- K泡potassium bubble
- 《读者文摘》每月印行1900多万份。"Reader's Digest" prints nearly 19 million copies a month.
- K镜K mirror
- 亚硫酸钙反应在大约1900°F时逆向。The ?? reaction reverses at about 1900°F.
- K相K phase
- 1900毫米板坯连铸机润滑脂的选用探讨Exploration on Selection of Lubrication Grease Used in 1900mm Slab Continuous Caster
- K-BK-B
- 美国的大峡谷深1900米,最宽达25公里。The Grand Canyon in the USA is 1900 metres deep and 25 kilometers wide at its maximum.
- K=1K=1
- 上述语句现在将插入日期显示为1900-01-01。The above statement now results in the insertion of the date 1900-01-01.
- K-LKarhunen-Loeve
