He bought this house at a tarnal low price and sold it at a higher price after several years.他以极低的价格购入此房，几年后又以高价卖出。
Afer applying control system, joint station pressure of subside dehydrate and pressure of power dehydrate ranges from 0.控制系统投运后 ,联合站沉降脱水压力和电脱水压力稳定在 0 . ～ 0 . MPa之间 ,外输油含水控制在 0 .%～ 0 . 0 % .