求翻译：氩气保护下，退火炉内温度较真空保护均匀，钛管晶粒度差异较真空退火小，力学性能能较真空退火稳定，且退火成本较真空退火低。是什么意思？

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Argon Gas, annealing furnace temperature in a vacuum protection evenly, titanium tube die, less vacuum annealed small mechanics performance to a vacuum annealing stability, and annealed cost more vacuum annealed low.

Under the argon protection, in the annealing furnace the temperature compares the vacuum protection to be even, the titanium tube crystal grain size difference compares the vacuum annealing to be small, mechanics performance can compare the vacuum annealing to be stable, also the annealing cost comp

Under argon, vacuum annealing furnace temperature protection uniform TI Guan Jing granularity differences relatively small vacuum annealing, mechanical properties of vacuum annealing stability and low cost vacuum annealing annealing.

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