春山_的喜欢 | LOFTER（乐乎） - 让兴趣，更有趣
LOFTER for ipad —— 让兴趣，更有趣
春山_ 的喜欢
&nbsp&nbsp被喜欢
&nbsp&nbsp被喜欢
{list posts as post}
{if post.type==1 || post.type == 5}
{if !!post.title}${post.title|escape}{/if}
{if !!post.digest}${post.digest}{/if}
{if post.type==2}
{if post.type == 3}
{if !!post.image}
{if post.type == 4}
{if !!post.image}
{if !!photo.labels && photo.labels.length>0}
{var wrapwidth = photo.ow < 500?photo.ow:500}
{list photo.labels as labs}
{var lbtxtwidth = Math.floor(wrapwidth*(labs.ort==1?labs.x:(100-labs.x))/100)-62}
{if lbtxtwidth>12}
{if !!labs.icon}
{list photos as photo}
{if photo_index==0}{break}{/if}
品牌${make||'-'}
型号${model||'-'}
焦距${focalLength||'-'}
光圈${apertureValue||'-'}
快门速度${exposureTime||'-'}
ISO${isoSpeedRatings||'-'}
曝光补偿${exposureBiasValue||'-'}
镜头${lens||'-'}
{if data.msgRank == 1}{/if}
{if data.askSetting == 1}{/if}
{if defined('posts')&&posts.length>0}
{list posts as post}
{if post_index < 3}
{if post.type == 1 || post.type == 5}
{if !!post.title}${post.title|escape}{/if}
{if !!post.digest}${post.digest}{/if}
{if post.type == 2}
{if post.type == 3}
{if post.type == 4}
{if post.type == 6}
{if drlist.length>0}
更多相似达人：
{list drlist as dr}{if drlist.length === 3 && dr_index === 0}、{/if}{if drlist.length === 3 && dr_index === 1}、{/if}{if drlist.length === 2 && dr_index === 0}、{/if}{/list}
暂无相似达人，
{if defined('posts')&&posts.length>0}
{list posts as post}
{if post.type == 2}
{if post.type == 3}
{if post.type == 4}
{if post.type == 6}
this.p={ dwrMethod:'queryLikePosts',fpost:'2e2b5',userId:2672723,blogListLength:28};取5只指示灯泡进行寿命试验,寿命分别为500,h,求MTTF；若灯泡寿命服从指数分布， - 数学 - 中国广告知道网
>>数学>>问题页
未解决问题
取5只指示灯泡进行寿命试验,寿命分别为500,h,求MTTF；若灯泡寿命服从指数分布，5分
求其失效率，t=4000时的可靠度及t0.5
小丫头17470&
详细问题描述及疑问：期待您的答案，你的帮助无异于雪中送炭,让我感激涕零！
网友们正在为您出谋划策，请耐心等待！
|||||||||||||
还没有人回答，请耐心等待！
猜您感兴趣
本页网址：天下知春的喜欢 | LOFTER（乐乎） - 让兴趣，更有趣
LOFTER for ipad —— 让兴趣，更有趣
天下知春 的喜欢
&nbsp&nbsp被喜欢
&nbsp&nbsp被喜欢
{list posts as post}
{if post.type==1 || post.type == 5}
{if !!post.title}${post.title|escape}{/if}
{if !!post.digest}${post.digest}{/if}
{if post.type==2}
{if post.type == 3}
{if !!post.image}
{if post.type == 4}
{if !!post.image}
{if !!photo.labels && photo.labels.length>0}
{var wrapwidth = photo.ow < 500?photo.ow:500}
{list photo.labels as labs}
{var lbtxtwidth = Math.floor(wrapwidth*(labs.ort==1?labs.x:(100-labs.x))/100)-62}
{if lbtxtwidth>12}
{if !!labs.icon}
{list photos as photo}
{if photo_index==0}{break}{/if}
品牌${make||'-'}
型号${model||'-'}
焦距${focalLength||'-'}
光圈${apertureValue||'-'}
快门速度${exposureTime||'-'}
ISO${isoSpeedRatings||'-'}
曝光补偿${exposureBiasValue||'-'}
镜头${lens||'-'}
{if data.msgRank == 1}{/if}
{if data.askSetting == 1}{/if}
{if defined('posts')&&posts.length>0}
{list posts as post}
{if post_index < 3}
{if post.type == 1 || post.type == 5}
{if !!post.title}${post.title|escape}{/if}
{if !!post.digest}${post.digest}{/if}
{if post.type == 2}
{if post.type == 3}
{if post.type == 4}
{if post.type == 6}
{if drlist.length>0}
更多相似达人：
{list drlist as dr}{if drlist.length === 3 && dr_index === 0}、{/if}{if drlist.length === 3 && dr_index === 1}、{/if}{if drlist.length === 2 && dr_index === 0}、{/if}{/list}
暂无相似达人，
{if defined('posts')&&posts.length>0}
{list posts as post}
{if post.type == 2}
{if post.type == 3}
{if post.type == 4}
{if post.type == 6}
this.p={ dwrMethod:'queryLikePosts',fpost:'2fc1',userId:,blogListLength:8};归煜的喜欢 | LOFTER（乐乎） - 让兴趣，更有趣
LOFTER for ipad —— 让兴趣，更有趣
归煜 的喜欢
&nbsp&nbsp被喜欢
&nbsp&nbsp被喜欢
{list posts as post}
{if post.type==1 || post.type == 5}
{if !!post.title}${post.title|escape}{/if}
{if !!post.digest}${post.digest}{/if}
{if post.type==2}
{if post.type == 3}
{if !!post.image}
{if post.type == 4}
{if !!post.image}
{if !!photo.labels && photo.labels.length>0}
{var wrapwidth = photo.ow < 500?photo.ow:500}
{list photo.labels as labs}
{var lbtxtwidth = Math.floor(wrapwidth*(labs.ort==1?labs.x:(100-labs.x))/100)-62}
{if lbtxtwidth>12}
{if !!labs.icon}
{list photos as photo}
{if photo_index==0}{break}{/if}
品牌${make||'-'}
型号${model||'-'}
焦距${focalLength||'-'}
光圈${apertureValue||'-'}
快门速度${exposureTime||'-'}
ISO${isoSpeedRatings||'-'}
曝光补偿${exposureBiasValue||'-'}
镜头${lens||'-'}
{if data.msgRank == 1}{/if}
{if data.askSetting == 1}{/if}
{if defined('posts')&&posts.length>0}
{list posts as post}
{if post_index < 3}
{if post.type == 1 || post.type == 5}
{if !!post.title}${post.title|escape}{/if}
{if !!post.digest}${post.digest}{/if}
{if post.type == 2}
{if post.type == 3}
{if post.type == 4}
{if post.type == 6}
{if drlist.length>0}
更多相似达人：
{list drlist as dr}{if drlist.length === 3 && dr_index === 0}、{/if}{if drlist.length === 3 && dr_index === 1}、{/if}{if drlist.length === 2 && dr_index === 0}、{/if}{/list}
暂无相似达人，
{if defined('posts')&&posts.length>0}
{list posts as post}
{if post.type == 2}
{if post.type == 3}
{if post.type == 4}
{if post.type == 6}
this.p={ dwrMethod:'queryLikePosts',fpost:'1e538fa8_ebdcd16',userId:,blogListLength:30};