Begin on failure analysis of a damaged transmission countershaft of HINO model ZM440 15t truck, this paper presents their study on the repairing process by bead welding, bow to recondition the gear bore hole and realigning of the bent shaft.
An exceptional failure in Dong Feng model EQ140 truck clutch is described, namely, as soon as the engine started, the free travel of clutch pedal immediately vanished. therefore the release bearing is seriously damaged.
On the basis of the work principles of the control circuits of gasoline pump for Toyota' PREVIA engine, this article indicates the cause for the circuits failid to work, and puts forwards the diagnosing methods by substituting the damaged TR in the internal tube of the EUC control circuits with connecting the on\|off tube outside. \;
A secret sharing system can be damaged when the dealer cheating occurs.
Effect of damaged pine needles on growth and development of pine caterpillar larvae
The results showed that the nutritional index of the larvae declines after feeding on the damaged pine needlings.
The lowest amount of food ingested and voided feces, the lowest nutritional index, slowest development, lightest pupae and most mortality were found in those pine caterpillar larvae fed with pine needles which were 50% damaged.
The damaged pine needles significantly affected the population dynamics of Chinese pine caterpillars.