A transient state distribution of temperature within the infinite medium is assumed to induce the moisture transfer process.
假定无限介质内热源的存在引起周围多孔介质内温度的瞬态变化和水分的迁移和扩散。
Arc welding process is a very complicated process with many interacting factors mixed together, so the transient state of welding process is related to many parameters.
电弧焊接过程是一个多因素交互作用的复杂过程，焊接过程的状态与许多参数有关。
A transient process and steady state simulation model of underwater diesel engine system, including governor, diesel engine and rear exhaust pipe system, was developed and verified in this paper.
建立了包括调速器、柴油机本体、后排气管路的水下柴油机动力系统的动态及稳态过程分析模型，并进行了试验验证。
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