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• 2018-12-10 19:08发布了问答

  p20模具钢的热膨胀系数是多少

  　

  630人看过

• 2018-11-20 19:55发布了问答

  德胜钢铁的钢筋上有DSCX的符号，DS表示德胜，CX是什么意思？

  　

  420人看过

• 2018-11-16 20:40发布了问答

  装导热油的桶是一般固废吗?

  　

  307人看过

• 2018-11-16 16:56发布了问答

  容灾的分类

  　

  229人看过

• 2017-10-11 14:33发布了问答

  汽轮机汽缸和转子的热膨胀

  汽轮机转子以推力盘面为死点，向排汽端膨胀，而汽缸以排汽接管的ZX线为死点向进汽端膨胀，这样是否会发生动静部分的碰撞呢？

  581人看过

• 2017-05-14 00:21发布了问答

  影响耐火材料导热性能的因素有哪些

  　

  463人看过

• 2016-07-28 07:02发布了问答

  dsc有什么作用

  453人看过

• 2016-02-29 15:07发布了问答

  停车场系统出现时间异常禁止刷卡怎么办

  　

  378人看过

• 2015-07-20 08:33发布了问答

  索尼 dsc-hx50 数码相机wifi怎么用

  　

  461人看过

• 2014-12-25 16:06发布了问答

  有没有导热系数为0的物质

  　

  397人看过

• 2011-09-15 07:31发布了问答

  导热油到底是干什么用的

  　

  414人看过

• 2010-11-22 11:16发布了问答

  DSC-HX1用什么镜头好？

  我的产品有些比较大，想拍好一点，清晰一点，能将产品拍得有质感一点，用什么镜头好一点呢？不用太贵，一般就OK了

  283人看过

• 2008-12-12 12:48发布了问答

  机械英语翻译网站

  The varying rates of thermal expansion are the basis of the bimetal thermostat. The metal stripe of the thermostat have greatly different thermal expansion coefficients. When they are bonded together and heated， the metal with the high expa... The varying rates of thermal expansion are the basis of the bimetal thermostat. The metal stripe of the thermostat have greatly different thermal expansion coefficients. When they are bonded together and heated， the metal with the high expansion rate elongates much more than the other strip. This causes the strips to bend and touch the contact point. The lead screw goes through a pair of half nuts， which are fixed to the rear of the apron. When actuating a certain lever， the half nuts are clamped together and engage with the rotating lead screw as a single nut， which is fed， together with the carriage， along the bed. The width of cut is the width of the workpiece in contact with the cutter in a direction normal to the feed. We can easily see that the width of cut should decrease with increasing depth of cut to keep the load and power requirement below those that can be met by the cutter and the machine tool， respectively. The control unit coordinates the operations of all the other components. It controls the input and output information between the computer and the outside world through the I/O section， synchronizes the transfer of signals between the various sections of the computer， and commands the other sections in the performance of their functions. 展开

  367人看过

• 2007-04-21 06:55发布了问答

  如何学好生化？帮忙啊~~~~~~~~~~~~~~

  偶们要考试了~~Z好一个礼拜就能搞定，不要求掌握的特别精细，但基本的都要知道。哪位强人指点一下啊~~... 偶们要考试了~~Z好一个礼拜就能搞定，不要求掌握的特别精细，但基本的都要知道。哪位强人指点一下啊~~ 展开

  384人看过