1·To make the work easier, workers may have lubricated the paths either with wet clay or with the fat from cattle.
为了减轻施工难度，工人们可以用湿粘土或牛的脂肪来润滑道路。
2·Permanently sealed and lubricated ball bearings front and rear.
前后端盖装有永久密封和自润滑的滚珠轴承。
3·The lubricated performance with brilliance, has reduced the unusual wearing and tearing of the high-power engine.
具有卓越的润滑性能，减少了大功率发动机的异常磨损。