野生动物学报, 1990 据东北林业大学动物实验场1986—1989年度对所饲种貉繁殖过程中交配行为的观察,发现在生长日龄、饲养条件等完全相同的情况下某些种貉在发情且达成交配后往往发生互相嘶咬的现象。（大约占15％左右）这种现象普通表现为:种貉发育正常且适时出现发情症候,并顺利达成交配但达成配对后一段时间（1—2分钟）即出现嘶咬行为,母貉首先嘶咬公貉但嘶咬仅限于公貉的头面部、呈间歇性可贯穿在交配的整个过程中,公貉则处于被动地位,一般不出现公貉嘶咬母貉的现象只随母貉动作相应变换体位,后期可出现尾对尾的特殊交配姿势,开对时间2 ...
王宗焕
doaj
Gaoya dianqi, 2012 高压断路器重合闸操作的金属短接时间（金短时间）,是保证断路器"C-O"操作第二"分"开断能力的重要参数。现有高压SF6断路器的金属短接时间通常不能满足标准推荐的50 ms的指标。高压断路器的分合闸指令是由其操动机构配置的辅助开关发出的,因而辅助开关是金短时间控制的理想而可靠的机构。笔者分析了高压断路器辅助开关的结构,在理论力学和系统动力学的基础上,对辅助开关操动特性进行了研究,研究成果通过实验验证。
刘坚钢, 金立军
doaj
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