The formation of oxygen precipitates and threading dislocations in top Si layer could be avoided by low temperature annealing.
低温退火可以避免在顶部硅层中氧沉淀及延伸位错等缺陷的形成。
A prototype of pulse detonation rocket engine (PDRE) is introduced to solenoid valves for the control of oxygen, kerosene and isolation gas; thus continuous combustion is avoided.
简述了脉冲爆震火箭发动机的实验系统，利用电磁阀控制煤油，氧气和隔离气体，避免了连续燃烧。
The occurrence of complications can be avoided to ensure the safety of hyperbaric oxygen therapy.
也可避免并发症的发生，保证高压氧治疗的安全。
The occurrence of complications can be avoided to ensure the safety of hyperbaric oxygen therapy.
也可避免并发症的发生，保证高压氧治疗的安全。
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