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水利用率高达80%以上。
即利用同轴安装在管道中的V形锥体，迫使流体从中心逐渐收缩到管道内壁而流过V形锥体，通过测量V形锥体前后的差压来求得流量。
一、幼儿园种什么植物好1、绿萝水培绿萝十分简单，一杯清水就可以了，青青郁郁的叶子，装饰在幼儿园内，很是养眼，而且这种植物不怎么招惹虫子，也没有刺，不用担心孩子会被刺到，而且还可以让孩子自己观察生长情况。
4.安装简便，牢固耐用，免维护。
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技术参数
但是容易给搜索引擎惩罚，一但发现就会K站，不会给你排名的机会。
很多出行方式都是免费托运的。
车子可以能长时间停放多久？来源：发布时间：2020-04-20发布人：admin 奥迪维修告诉你，你的车能停多久 Audimaintenancetellsyou,howlongcanyourcarpark 长时间停车的危害有哪些第一是电池严重损坏，引擎无法着火。
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4.安装简便，牢固耐用，免维护。
建设项目复杂而系统特点。
力学性能：抗拉强度σb(MPa)：≥985(100)屈服强度σs(MPa)：≥835(85)伸长率δ5(%)：≥12断面收缩率ψ(%)：≥45冲击功Akv(J)：≥63冲击韧性值αkv(J/cm2)：≥78(8)试样尺寸：试样毛坯尺寸为25mm热处理规范及金相组织：热处理规范：淬火850℃,油冷;回火550℃,水冷、油冷。
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