| I | lubricate |
|---|---|
| you | lubricate |
| he/she/it | lubricates |
| we | lubricate |
| you | lubricate |
| they | lubricate |
| I | lubricated |
|---|---|
| you | lubricated |
| he/she/it | lubricated |
| we | lubricated |
| you | lubricated |
| they | lubricated |
| I | have | lubricated |
|---|---|---|
| you | have | lubricated |
| he/she/it | has | lubricated |
| we | have | lubricated |
| you | have | lubricated |
| they | have | lubricated |
| I | had | lubricated |
|---|---|---|
| you | had | lubricated |
| he/she/it | had | lubricated |
| we | had | lubricated |
| you | had | lubricated |
| they | had | lubricated |
单语范例（未经PONS编辑处理）
Samples of oil were taken and after analysis, proved to be lubricating oil.
en.wikipedia.org The light blocking method is specified for particle counters that are used for counting in hydraulic and lubricating fluids.
en.wikipedia.org At reduced viscosity, the oil is not as capable of lubricating the engine, thus increasing wear and the chance of overheating.
en.wikipedia.org The cylinders are angled at 90 degrees with three valves per cylinder and lubricated via a dry sump system.
en.wikipedia.org Cutting fluid is sometimes used to ease this problem and to prolong the tool's life by cooling and lubricating the tip and chip flow.
en.wikipedia.org