上盖板 meaning in Chinese

upper cover plate

Thickness : side board front board at 8mm , top bottom board at 5mm 3mm
厚度:边机板面板8mm ,上盖板
2 disconnect the gauge glasses or fit a blind flange between them
拆开水位玻璃管或者在两者之间装上盖板
Bolted cover plate to protect seal and cylinder from the ingress of debris
上盖板可防止杂物进入缸筒损坏密封。
The conclusion of reappearing analysis is that crane bridge be used as usual because main weld maximum stress of upper cover plate of main beam lower than yield limit though it higher than permissible stress . inner stress of secondary beam was over ultimate strength , and deforming is ultra big . so it was unfit for produce and secondary beam must be changed
再现分析得出的主要结论为：桥架的主梁上盖板主焊缝的最大应力超过了许用应力，但小于屈服极限，可以继续投入使用；副梁内部的应力远远超过了强度极限，变形特别严重，不能满足生产要求，因此更换新的副梁；端梁内部的应力超过了屈服极限，小于强度极限，在应力较大的位置焊接补强板；投入使用后，要对整个桥架进行定期检查。