Because it has shown a pleased result in many kinds of precipitation reaction such as ring precipitation reaction, AGAR diffusion reaction and so on.

结果：自制兔抗羊免疫血清和羊血清经环状沉淀、琼脂扩散多种沉淀反应试验，验证均与兔抗人血清和人血清的反应结果相近。

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A new junction termination technique in which field plate combines with diffusion guard ring is presented. And we discuss the principle and superiority of the new junction termination technique.

提出了一种新型的场板和保护环相结合的结终端技术，并讨论了此终端结构的工作原理和优越性。

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