The valve component matches the gap of the shaft hole of the cooker cover liner and axially has a certain floating distance.

阀体组件与锅盖内衬轴孔间隙配合，且轴向有一定的浮动距离。

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Whether the component is a motor, a control valve, a star tracker, an antenna or a chip, it is simpler to look for non-American alternatives.

ECONOMIST: Space technology

But he has already made his own valve radio and is convinced there will be enough British-made component parts for him to make his own mobile phone.

BBC: Can a family survive for a year on British-made goods?