shall be to 是什么意思? 回复 5# jeffreytang77 检测故障的传感器应能检测定位乙烯装置界区内公用工程故障。 我觉得这么翻译通顺，可能没有上下文的原因。 您有空 再斟酌斟酌 ，整段话是这 for each of the global detection systems listed above, three transmitters with 2-out-of-3 voting are provided. the location of the failure sensors shall be to sense the utility failure at the ethylene plant battery limit. this is important for refining / petrochemical complexes where utilities are fed from a common utility system. 查看更多
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