Methods to improve the quality of inner electroplate of connector with small and deep holes;

Type selection of ф3.40m large diameter and deep hole drilling equipment for No 3 main tower pier of Wuhan Tianxingzhou great Yantze River bridge;

By fundamentals analysis of linearity surveyor of domestic and international and relatively surveyor, design deep-hole linearity surveying system based on relatively surveyor, and study structure and software of that system, for linearity examination have certainly actual significance in deep-hole machining.

The thesis simply expounds the construction experience of the face deep-hole through bedrock weathering zone,and insures the quality of perfect engineering.

heoretical work on the relationship between the hole depth and different gating light schemes in photon gated spectral hole burning under the weak field limit was reported.