n. heptachlor
...氯农药，也用作精细化工产品：有机氯农药，也用作精细化工产品• 灭蚁灵（Mirex）：有机氯农药：有机氯农药• 七氯（Heptachlor）：有机氯农药：有机氯农药• 多氯联苯（PCBs）：精细化工产品：精细化工产品• 二恶英和呋喃类（PCDDs/PCDFs）：非故意制造的副产...
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环氧七氯 Heptachlor epoxide ; Heptachlor-exo-epoxide
七氯环氧化物 Heptachlor epoxide
七氯氟丙烷 Heptachlorofluoropropane
七氯丙烷 heptachloropropane
环氧七氯A Heptachlor endo-epoxide solution ; Heptachlor-endo-epoxide
七氯标准品 Heptachlor
七氯代萘 naphthalene heptachloride
七氧化二氯 Dichlorine heptoxide ; chlorine heptaoxide
外环氧七氯 Heptachlor-exo-epoxide
在河北省境内采集207个表层土壤样品，测定其中的七氯含量。
207 top soil samples were collected from Hebei province and the contents of heptachlor were measured.
氯磺酰异氰酸酯可用于合成含氧、氮、硫等原子的四至七元杂环化合物。
Chlorosulfonyl isocyanate as an important intermediate was applied toward the syntheses of four to seven member heterocyclic compounds containing oxygen, nitrogen, sulfur atoms.
将母体染料的中位氯原子用氨基试剂亲核取代，衍生合成了五个中位仲胺七甲川菁染料。
Five derivative dyes from the parent dyes were obtained by similar nucleophilic substitution reaction in which five primary amines were employed as the nucleophilic reagent.
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