Analysis and elimination of errors in Brinell-hardness test;

Malfunction diagnosis and elimination of the numerical control machine tools;

Analysis and Elimination of Failure with TC-136 Nitrogen/oxygen Determinator Equipped Pulse Furnace;

The Common Faults and Removal Method of the Y3150 E Type Hobbing Machine Workbench;

Analysis and removal of excessively high water temperature in the engines of engineering machines;

Common faults of electro-hydraulic system of CAT330 excavator and removal measures;

Trouble diagnosis and exclusion of NC machine tool return reference point;

Analysis and exclusion of electrical leakage interference factors of digital water level instrument;

The Heavy-duty Vehicle Turns All-hydraulicallyto Systematic Accident Analysis and Exclusion;

Frequent fault and eliminate of automatic monitoring system of ambient air;

The ways to analyze and eliminate the common failures of the self-excited generator;

Eliminated the Non-specific Responds of the Cow Tuberculosis in PPD-ELISA;

：In this paper the author introduces the component elements in marine heat-conducting oil boiler in detail，analyses the usual faults for such boiler with its working principle and puts forward ways to remove the faults.

It is an effective way of classifying the failures in order to check the causes and remove them.

Poor character evidence has no relationship with the argument fact of the cases, therefore except some specific exceptions, on the principle the law will exclude the defendant’s poor character evidence out of the court.