趣英语 / backfilling例句

backfilling例句

Mining backfilling is restrained by relatively high filling cost.
充填采矿由于充填成本较高而制约着其发展.

High - water rapid - hardening backfilling with whole tailings is a new developed backfilling technology.
全尾砂高水速凝充填技术是一项新近发展起来的充填技术.

Its dam foundation grout curtain and backfilling technologies are advanced.
在大坝基础工程帷幕灌浆、回填技术上处同行之首.

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