... stand-by power 备用电源 slot trough 沟槽距 transformer ratio (变压器)变压比 ...
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trough slot 风化槽地段
ventilative trough board slot 通风槽板槽孔
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Trough tooth bending pressure, combined with the surface smooth, wiring slot 90 degrees not break, unyielding, become angry.
线槽齿抗折压，结合面平滑，配线槽内90度不易断裂，变型，变色。
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