(1) 使用散热锡球（thermal ball）及散热信道（thermal via）协助散热 增加BGA散热的最好方式是使用散热用锡球，散热用锡球是指直接安装在芯片正下方基板下的锡球，...
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ice ball thermal storage system 冰球式蓄冷系统
The transient thermal analysis of the main thrust ball bearing was performed during fuel cut off for an aeroengine oil system.
对在航空发动机滑油系统断油时的主推力球轴承瞬态热进行了分析。
The methods of thermal spray and mechanical ball milling are combined in this paper and a new method of preparation of Cu-Zn ultrafine powders is brought forward.
本文将热喷涂法与机械球磨法相结合，提出一种新的超细铜锌粉末的制备方法。
The methods of thermal spray and mechanical ball milling were combined in this paper and a new method of preparation of ultrafine Cu-Zn powder was brought forward.
本文将热喷涂法与机械球磨法相结合，提出一种新的超细铜锌粉末的制备方法。
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