To increase the success rate of the teamwork between oil tube transport ejection hole and stratum testing set mainly needed to increase the level of shock absorption and leak prevention.
提高油管传输射孔与地层测试器联合作业的一次性成功率，主要在于提高减震与防漏水平。
2
The petrol engine avoids the phenomenon of engine oilejection, omits an original oil cavity baffle plate device, reduces a sealing gasket, and has simpler structure and more convenient installation.
The valve ofejection nozzle is an important part in the diesel engine; its processing quantity will directly affect the amount of the oil usage and the exhaust let off by diesel engine.