2,3-二羟基丙酸	dihydroxypropionic acid
23日
2402灭火剂	halon 2402
2,4,5-三氯苯氧乙酸	2,4,5-trichlorophenoxyacetic acid
2,4,5-涕	2,4,5-t 2,4,5-trichlorophenoxyacetic acid trichlorophenoxyacetic acid
2,4,5-涕丙酸	fenoprop 2,4,5-tp silvex
24/7	24/7
2472喹啉铜	Cunilate
24/7通信中心	24/7 Communications Centre
24K纯金首饰	24K fine jewellery
24不时内h小时无人值班的定期无人机舱符号德意志联邦劳埃德船级社24小时内无人值班的定期无人机舱代号	Aut-h24
2,4-二氢邻苯二甲酸酐	2,4-dihydrophthalic anhydride
2,4-二氨基二苯胺	2,4-diaminodiphenylamine
2,4-二氯苯氧乙酸	2,4-dichlorophenoxyacetic acid
2,4-二氯苯氧基乙酸	2,4-d 2,4-dichlorophenoxyacetic acid
2,4-二甲基乙酰苯胺	acetoxylide
2,4-二硝基氯苯	2,4-dinitrochlorobenzene
2,4-二硝基苄基氯	2,4-dinitrobenzyl chloride
2,4-二硝基苯甲酸	2,4-dinitrobenzoic acid
2,4-二硝基苯肼	2,4-dinitrophenylhydrazine 2,4-Dinitrophenylhydrazine DNP-hydrazine
2,4-二硝基苯胺	2,4-dinitroaniline
2,4-二硝基苯腙	DNP-hydrazone
2,4-二硝基苯腙环己酮	cyclohexanone-2,4-dinitrophenylhydrazone
2,4-二硝基苯酚	2,4-dinitrophenol
2.4 二硝基苯酚	2.4 dinitrophenol
2,4-二硝基茴香醚	2,4-dinitroanisole
2,4-二硝基酚	2,4-dinitrophenol
2,4-二硝基间苯二酚	2,4-dinitroresorcinol
2,4-二硝酚	2,4-dinitrophenol Dnp
2,4-二羟基苯乙酮	resacetophenone 2,4-dihydroxyacetophenone
24国特别委员会	Special Committee on the Situation with regard to the Implementation of the Declaration on the Granting of Independence to Colonial Countries and Peoples Special Committee of 24 on Decolonization Special Committee of 24
24国集团/协商小组捐助国 会议	Group of 24 / Consultative Group Donors Conference
24国非殖民化特别委员会	Special Committee on the Situation with regard to the Implementation of the Declaration on the Granting of Independence to Colonial Countries and Peoples Special Committee of 24 on Decolonization Special Committee of 24
24小时	round-the-clock mean solar day solar day twenty-four hours 24-hour interval twenty-four hour period day
24小时制（0–23）	24 Hour System (0–23)
24小时制（1–24）	24 Hour System (1–24)
24小时晴天工作日
24 小时节律	circadian rhythm
24日
2—4毫米直径的砂子	granule
2~4毫米直径的砂子小粒	granule
2,4-滴	2,4-d 2,4-dichlorophenoxyacetic acid
2.4 滴	2.4 dichlorophenoxyacetic acid 2.4 d
2,4-滴丙酸	dichlorprop
2,4-滴乙基硫酸钠	disul 2,4-des
2.4滴硫钠	Disul Sodium
2.4 滴胺
24线插头座	twenty-four wire socket
2500米水深点	2,500 m crossing 2,500 meter depth point
2500米等深线	2,500 m depth contour 2,500 metre contour 2,500 metre isobath
普通话	English