1.transmission gears, chain link and transmission system whether apply oil.
传动齿轮、链条及传动机构是否加润滑油。
2.a container with a long nozzle to apply oil to machinery.
有长管的输送油到机器的容器。
3.apply oil film to seal lips and mating diameters prior to assembly-3 places.
在3件安装之前，在密封唇和对接径上装油膜。
4.a. Regularly apply oil or grease to specified points of drive components;
定期在传动部件的指定部位加润滑油或润滑脂；
5.That you need to apply oil to prevent rusting. because leather is acidic. but you need to pay extra 0. 1 yuan for the service
那要挂封油.真皮酸性大.挂封就不会生锈.不过要加0.1元的挂封油费。