无缺陷的
1.The goal of people responsible for raw materials, batching, and furnace operations should be to provide the bottle makers with a continuous flow of uniform defect-free glass.
2.The results show that the main phase composition of Mo_2FeB_2 cermets is Mo_2FeB_2 and γ-Fe sinter phase with dense structure, and the microhardness is up to 1600 HV0.5. The interface of Mo_2FeB_2 cermets-steel clad material is metallurgic combine without defects and has good compatibility on the interface.
3.The extent to which software is free from design defects and from coding defects; that is, fault free.
5.In actual work, measures such as QC group activity, project quality improvement committee, special plan for creating high-quality projects, etc are important for finally guaranteeing the realization of faultless projects.
6.Based on the analysis of bugs of general Planetary Bevel-type CVI, a new design concept, which is about the shape modification of planetary disk, is presented for improving the planetary Bevel-type CVT reported in paper [1], The purpose of the new concept is to improve the stress of the main parts, in order to reduce sliding rate and to achieve transmission with constant power and constant sliding rate.
8.POSITRON ANNIHILATION TECHNIQUE FDR ADVANCED SULPHOALUMINATE-MACRO-DEFECT-FREE CEMENT
9.The experiment showed that, after casting, the core can be completely collapsed when steeped in water at 50℃ for 15 minutes and the castings surface is better.
10.The dislocation free crystal growth based on heavily B doped seeds without Dash necking was introduced. The mechanical properties, the oxygen and the void defects of heavily B doped Czochralski silicon were also discussed.

