push type grease gun

例句：

1. 1.This push-type grease gun is easy to use and can be used for a long time.
   这款推式油枪使用方便，可长时间使用。
2. 2. The technician carefully pushed the grease gun into the hole to ensure proper sealing.
   技术员小心地将油枪插入孔中，以确保密封良好。
3. 3.The push-type grease gun was used to lubricate the gears before assembly.
   在装配前，使用推式油枪对齿轮进行润滑。