评价: appraise; evaluate; assess; estimate; valuation 短语和例子评价过低 rate sth. unreasonably low; 评价历史人物 appraise historical figures; judge of historic characters; 高度评价 set a high value on; speak high
腐蚀: 1.(通过化学作用使物体逐渐消损破坏) corrode; corrosion; corroding; deep etch; diabrosis; rot; eat off; etch; etching; pitting 短语和例子金属的腐蚀 corrosion of metal; 腐蚀到所需频率 etching to frequency; 如果不涂油或保持清洁铁便会腐蚀。
管道: [工业] pipeline; channel; tunnel; piping; canalis; pipe run; duct; conduit; conduit pipe; ducting; line of pipes; pipe alley 短语和例子污水管道 soil pipeline; 煤气管道 gas pipe; 消防管道 fire fighting pipeli
