问题
问答题 简答题
椭圆齿轮流量计的特点是什么？
答案
参考答案：
特点：
流量测量与流体的流动状态无关，这是因为椭圆齿轮流量计是依靠被测介质的压头推动椭圆齿轮旋转而进行计量的。
粘度愈大的介质，从齿轮和计量空间隙中泄漏出去的泄漏量愈小，因此核测介质的粘皮愈大，泄漏误差愈小，对测量愈有利。
椭圆齿轮流量计计量精度高，适用于高粘度介质流量的测量。
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椭圆齿轮流量计的特点是什么？
参考答案：
特点：
流量测量与流体的流动状态无关，这是因为椭圆齿轮流量计是依靠被测介质的压头推动椭圆齿轮旋转而进行计量的。
粘度愈大的介质，从齿轮和计量空间隙中泄漏出去的泄漏量愈小，因此核测介质的粘皮愈大，泄漏误差愈小，对测量愈有利。
椭圆齿轮流量计计量精度高，适用于高粘度介质流量的测量。
| 阅读短文，用方框内所给单词的正确形式填空，每词限用一次。 | |
usually when he comes home 2______ school. And his eating habits are pretty 3______ . He tries to eat more vegetables, usually ten to eleven 4______ a week. He eats fruit 5______ drink milk every day. Of course, he loves junk food, 6______ , but he tries to eat it only once a week. He usually keeps 7______ eight or nine hours every day. So you see, he looks very 88 and happy. And his good lifestyle (生活方式) helps him 9______ clever, too. Eating healthy food and doing exercise help him to study 10______ . |