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4、稳定性好、长期运行精度高，可靠性高由于楔形流量计采用V形楔形件的设计，V形楔形件会疏导流体离开节流件尾部边缘，减少它被磨损的可能性，节流件尺寸长期不变，又无可动部件与易损部件，可以保证仪表长期。

输出数字、智能：4～20mADC，用户可选择线性或平方根输出,数字过程变量叠加在4～20mADC信号上，可供采用HART协议的上位机使用。

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而变频电动机，由于临界转差率反比于电源频率，可以在临界转差率接近1时直接启动，因此，过载能力和启动性能不在需要过多考虑，而要解决的关键问题是如何改善电动机对非正弦波电源的适应能力。

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如果没有这样的资质，使用这项服务的客户会有很大的隐患。

用户需求分析就是看你这个行业的用户都在关注哪些方面，他们关注哪方面你就提供哪方面的信息。

制药纯化水设备主要特性： 1、产水水质高，出水稳定，连续不间断制水，不因再生而停机。

一般来讲，纳米粒子的改性方法有三种:1在粒子表面均匀包覆一层其他物质的膜，从而使粒子表面性质发生变化;2利用电荷转移络合体(如硅烷、钛酸酯等偶联剂以及硬脂酸、有机硅等)作表面改性剂对纳米粒子表面进行化学吸附或化学反应:3利用电晕放电、紫外线、等离子、放射线等高能量手段对纳米粒子表面进行改性。

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活性炭过滤器宜水平或垂直安装，当垂直安装时，水流方向应该是自上而下，安装时应注意外壳上箭头方向须与水流一致，正常运行时，蝶阀处于开启状态，当需要排污时，关闭蝶阀，打开排污阀直至排出水质变清为止。

汇聚了一大批专业技术人才，拥有全国工程勘察设计大师2人，高级职称技术人员占35%以上。

二、微小涡轮流量计产品特点1.高**度，一般可达±1%R、±%R，高精度型可达±%R；2.重复性好，短期重复性可达%~%,正是由于具有良好的重复性，如经常校准或在线校准可得到极高的**度，在贸易结算中是优先选用的流量计；3.输出脉冲频率信号，适于总量计量及与计算机连接，无零点漂移，抗干扰能力强；4.可获得很高的频率信号（3-4kHz），信号分辨力强；5.范围度宽，中大口径可达1:20，小口径为1:10；6.结构紧凑轻巧，安装维护方便，流通能力大；7.适用高压测量，仪表表体上不必开孔，易制成高压型仪表；8.专用型传感器类型多，可根据用户特殊需要设计为各类专用型传感器，例如低温型、双向型、井下型、混砂专用型等；9.可制成插入型，适用于大口径测量，压力损失小，价格低，可不断流取出，安装维护方便。

7.通径大于1米或采用其它安装联接方式，另索资料，商量定货。

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