特别由于脉冲附带长的拖尾加剧了热透镜效应，使得脉冲重复频率的增加引起转换效率的降低。
Specially, the thermal lens effect is intensified due to the long tail attached to pulse, which leads to decreasing of conversion efficiency if pulse repetition rate is enhanced.
特别由于嵌入式系统大量用在航天、航空、通信、医疗、工业控制和军事等领域，因此对嵌入式软件的测试要求更为严格。
Especially, the embedded systems are USES largely in the aerospace, aviation, correspondence, medical treatment, industrial realms and military, so the embedded softwares testing are very strictly.
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