【化】 低聚物

本文介绍了国外现阶段所采取的用低聚合物新型粘土稳定剂处理低渗透地层，用超声波解除地层损害等7种防治地层损害新措施。

Situational Low Self Esteem

Low density polyethylene

igh in both output and quality, but low in production cost

the low-tax, tariff-free zone; bonded area; tax-protected zone

low pressure safety cut-out

low-frequency amplifier for repeater circuits

low-frequency impedance correc tor

vertical low-pressure die casting machine