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杀螟丹
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杀螟丹
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农学
沙蚕毒类杀虫剂
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杀螟丹
一种沙蚕毒素类杀虫剂。分子式为:C7H15N3O2S2。化学名称:1,3-二(氨基甲酰硫基)-2-二甲基氨基丙烷。又称巴丹、沙蚕腰、派丹。
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Ramanujan f-function
Ramanujan formula
Ramanujan function
Ramanujan g- and G-functions
Ramanujan hypergeometric identity
Ramanujan hypothesis
Ramanujan identity
Ramanujan integral
Ramanujan interpolation formula
Ramanujan master theorem
Ramanujan Petersson conjecture
Ramanujan-Petersson conjecture
Ramanujan phi-function
Ramanujan prime
Ramanujan prize
Ramanujan psi-function
Ramanujan's congruences
Ramanujan's lost notebook
Ramanujan square equation
Ramanujan's sum
Ramanujan's sum for 1psi1
Ramanujan's sum for 1ψ1
Ramanujan's sum for _1ψ_1
Ramanujan sum
Ramanujan sum identity
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