- substrate holder
- 衬: line; place sth. underneath
- 底架: chassis; undercarriage; unde ...
- 底架: [机械工程] chassis; undercarriage; underbed; underframe◇底架横梁 body transom; underframe crosstie; 底架拉条 frame brace; 底架润滑剂 [材料] chassis lubricant; 底架悬挂电动机 frame suspended motor
- 衬底: underlayment; substrate; substratum; supporting base
- 车底架: body frame
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