misc. on position ; operating position
弹簧保护补偿器用于固定门板闭合位置；
Protected spring compensator to maintain closed door position;
表示双刀单掷开关。可指定断开和闭合位置。
Represents a double-pole, single-throw switch. Open and closed positions can be specified.
空运转至稳定状态时，热板在完全闭合位置。
When idle running comes to steady state, the heating plate shall be in the complete close position.
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