研究了热模法离心铸造球铁管的退火工艺。
The annealing process of centrifugal ductile cast iron pipe by the heated mould method is studied.
测得的波导参数在测量误差范围内与用导模法测得的数据一致。
The measured parameters of the waveguide agreed with data measured by using guided mode method in measuring error ranges.
前言：目的：探讨一种改良核桩根管取模法的应用及临床意义。
Objective: the purpose of this study was to investigate the application and clinical significance of taking dental impression with an improved method.
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