What must be done to release the internal stresses that build up in glass products during manufacture?
Câu hỏi:
What must be done to release the internal stresses that build up in glass products during manufacture?
A. The glass must be reheated and evenly cooled.
B. The glass must be cooled quickly.
C. The glass must be kept moist until cooled.
D. The glass must be shaped to its desired form immediately
Trả lời:
Chọn A
Thông tin: and why glassware must be slowly reheated and uniformly cooled after manufacture to release internal stresses induced by uneven cooling. (và tại sao đồ thủy tinh phải được hâm nóng từ từ và làm nguội đồng đều sau khi sản xuất để giải phóng ứng suất bên trong do làm lạnh không đều.)
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