cross bore
plural of sky marshal
plural of lookout
The intersection of an existing underground utility or underground structure by a second utility, resulting in direct contact between the transactions of the utilities that compromises the integrity of either utility or underground structure.
A surname. Often refers to French intellectual Isaac Casaubon.
検査中、作業員は新たに敷設されたガス管が既存の下水管と交差して直接接触し、両方の埋設設備の構造を損なう危険な地下埋設物の交差貫通を発見しました。
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