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These lamp holders are expensive and apt to be damaged.
这些光源灯座存在着易损或价贵的不足。
youdao
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To check lamp dimensions for contact making in IEC holders.
检验灯在灯座中有关接触性能的尺寸。
youdao
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To check lamp dimensions for contact making in IEC holders.
检验灯在灯座中有关接触性能的尺寸。
youdao