青云翻译

Although the oil to protect the process, there has been sliding vane pumps and centrifugal pumps in series, use the lack of theoretical guidance, there is a certain blindness, it is necessary to carry out research

Despite the oil support process, there have been series vane pumps and centrifugal pumps, lack of guidance in the use, a certain degree of blindness, it would be necessary to carry out research

Although in the fuel oils safeguard process, had the situation which the sliding-vane pump and the centrifugal pump connect, in the use lacks the theory instruction, has certain blindness, therefore has the essential development research

Even though the oil security process resulted in the emergence of a sliding pumps and centrifugal pump, use a concatenation of theoretical guidance, and with the lack of blindness, and therefore it was necessary to undertake research

Despite the oil support process, there have been series vane pumps and centrifugal pumps, lack of guidance in the use, a certain degree of blindness, it would be necessary to carry out research