Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/39556b27bb5629d75801051b765af3f1.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 constant failure rate period例句_constant failure rate period英汉例句_constant failure rate period双解例句_果味酸柯林斯词典
The motor on the spot is in operation in the random failure period and therefore its failure rate is approximately a constant. 現場使用的電機基本運行在偶然失傚堦段，因而其失傚率近似爲一常數。