It requires that for each pair of input para-meters of a system, every combination of valid values of these two parameters be covered by at least one test case.
它要求对于系统的每一对输入参数，这两个参数有效值的每一个组合至少要被一个测试用例覆盖。
After taking brief account of large flow meters testing, the article describes the importance of gas meters testing, cleaning, repairing in combination with test data and test analysis.
文章介绍了大流量燃气表检定的概况，用检定数据及分析说明了燃气表检定、清洗、维修的重要性。
It is explained in combination with practical instance how to use a general flow meter and several branch flow meters to measure and monitor the transported oil quantity.
结合实际情况介绍如何使用总流量表和分流量表来计量和监测发油量。
Unit combination style structure, span is from 6 meters to 60meters, unlimited length, user can choose different length and span you need.
单位组合式结构，篷房跨度从6到60米，长度不限，客户可根据需要选择不同跨度尺寸和长度。
Virtual instrument technology is an outgrowth of the combination of computer technique and traditional instruments and meters technique.
虚拟仪器技术是计算机技术和传统的仪器仪表技术相结合的产物。
Newly improved anticorrosion four taps can be used independently or in parallel combination, with 4 vacuum meters.
新改进防腐四抽头，可单独或并联使用装有四个真空表。
Newly improved anticorrosion four taps can be used independently or in parallel combination, with 4 vacuum meters.
新改进防腐四抽头，可单独或并联使用装有四个真空表。
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