单词	conservation policies
释义	conservation policies 保护政策
随便看	sheet-metal process sheet metal processing sheet-metal processing Sheet metal processing light to medium gauge sheet metal product sheet metal profile sheet metal profile, composite sheet metal profile, composite manufacture sheet-metal race ring sheet metal receptacle sheet metal relay house sheet-metal roofing sheet metal rotary offset press sheet metal rounding machine sheet metals sheet-metals sheet metal screw sheet-metal screw sheet metal seaming device sheet metal shears Sheet metal shears for cutting the copper sheet sheet metal shop sheet-metal shop sheet-metal shrinker sheet metal smoothing roll