n.（建筑、监造中的）承包人( contractor的名词复数 )...

protractors的音标：...

n.量角器，分度规( protractor的名词复数 )...

n.拖拉机( tractor的名词复数 )，牵引机，（牵引式挂车的）牵引车，拖车头...

After installing the protractors , check the assembly for squareness prior to using the machine.按完量脚器后, 请在使用前仔细检查各个部件的按装....

contractors的音标：contractors的英式发音音标为：[kɒnt'ræktəz]contractors的美式发音音标为：[kɒnt'ræktəz]...

Since 1960, many horizontal immersion extractors have been introduced.自1960年以来, 采用了许多水平浸提装置.These include the canvas extractors developed by the Institute of Forest Genetics at Placerville California.其中包括加利福尼亚的泼拉崖维尔森林遗传研...

tractors的音标：tractors的英式发音音标为：[t'ræktəz]tractors的美式发音音标为：[t'ræktəz]...

The consortium includes some of the biggest building contractors in Britain.该联合企业包括英国最大的一些建筑承包商。Smaller contractors had been forced to shut down.规模较小的承包商已被迫歇业。We got estimates from three different contractors before acce...

They supplied large numbers of tractors to peasants.他们向农民供应了大批拖拉机。All the tractors except this are good in quality.除了这台拖拉机,所有其他的拖拉机质量都很好.Tractors, Excavators, Construction Plants, Agricultural Machinery, Golf Course and ...

The building work is now behind schedule, but contractors are confident that they can make up for lost time.这项建筑工程目前落后于预定计划，但是承包人有信心把失去的时间补回来。We got estimates from three different contractors before accepting the lowest....

extractors的音标：extractors的英式发音音标为：[ɪkst'ræktəz]extractors的美式发音音标为：[ɪkst'ræktəz]...

n.抽油烟机( extractor的名词复数 )...

Tractors and container lorries have completely obstructed the road.拖拉机和集装箱货车已经将这条路完全堵死了。Nowadays tractors are used even in remote mountainous regions.现在连偏僻的山区也用上了拖拉机.All the tractors except this are good in quality.除了这台拖...