环庚比妥...

环十七烯酮...

cyproheptadine的音标：cyproheptadine的英式发音音标为：[saɪprəʊ'heptədi:n]cyproheptadine的美式发音音标为：[ˌsaɪproʊ'heptəˌdin]...

n.庚二醇...

n.并庚间三烯离子...

Heptathela的音标：...

n.七面体...

heptahydrate的音标：heptahydrate的英式发音音标为：[heptə'haɪdreɪt]heptahydrate的美式发音音标为：[heptə'haɪdreɪt]...

This paper reports the synthesis of 2 - heptanone in the functions of absolute potassium fluoride and acetonitrile.报道了在无水氟化钾和乙腈作用下2 - 庚酮的合成....

adj.七价的...

ethoheptazine的音标：ethoheptazine的英式发音音标为：[eθəʊ'hepteɪzɪn]ethoheptazine的美式发音音标为：[eθoʊ'hepteɪzɪn]...

n.七氯（一种杀虫剂）...

美庚嗪...

七烯族...

metheptazine的音标：metheptazine的英式发音音标为：[me'ðepteɪzɪn]metheptazine的美式发音音标为：[me'ðepteɪzɪn]...

The heptanal butyl mercaptan was synthesized with heptanal, sodium thiosulfate and 1 bromobutane as raw materials.以正庚醛 、 硫代硫酸钠和溴代正丁烷为原料,合成了正庚醛正丁硫醇缩醛....

heptaglyme的音标：heptaglyme的英式发音音标为：[hep'təɡlɪm]heptaglyme的美式发音音标为：[hep'təɡlɪm]...

heptameter的音标：heptameter的英式发音音标为：[hep'tæmɪtə(r)]heptameter的美式发音音标为：[hɛp'tæmɪtɚ]...

heptacontane的音标：heptacontane的英式发音音标为：[hep'tækənteɪn]heptacontane的美式发音音标为：[hep'tækənteɪn]...

七纺器蛛属...

n.十七（烷）酰...

The preparation of sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.用经高温煅烧后的闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸铜.Modified polymerized sulphate flocculating agent was made with ferrous sul...

heptamethylene的音标：heptamethylene的英式发音音标为：[heptə'meθɪli:n]heptamethylene的美式发音音标为：[heptə'meθɪlin]...

n.庚霉素...

heptadiyne的音标：heptadiyne的英式发音音标为：[heptə'daɪɪn]heptadiyne的美式发音音标为：[heptə'daɪɪn]...

The heptane compound has a primary purpose as a plasticizer for doublebase propellant systems.化合物庚烷的主要用途是作为双基推进剂的增塑剂.However, it is difficult to produce multi branched i heptane and restrain its cracking.正庚烷异构化的难点在于高选择性地...

n.七头统治，七国联盟，七王国...

环庚醇...

adj.七角的，七边形的...

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