您要查找的是不是：
- D＝1.density密度
- 管子工是安装和修理水管的人。A plumber is a person who fits and mends the plumbing.
- 她成了该厂最好的缝纫工。She became the best sewer in the factory.
- material density (人口)实质密度
- 厨工kitchen worker; kitchen hands
- packing density (粒状材料)堆积密度
- 运输工haulageman
- fibre-end density (牵伸区的)纤维端密度
- 他是个见习机械工。He was a mechanic who was on probation.
- in-situ density(不采样测定的密度)原地密度
- 这位印刷工把这额外的一页加在这里。The printer can set this additional page in here.
- scanning line density (单位：线／毫米)扫描线密度
- 身材矮胖的管子工a stockily built plumber
- 砌砖工brickmason
- 放样工mould loftsman
- 油漆工用白色调淡颜色。The painter lightened the color with white.
- 变工况varying duty
- 他找到了一份机修工的工作。He found employment as a mechanic.
- 他担任装货工。He works as a loader.
- 工休holiday
