英语词汇“pearl hardening”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

pearl hardening n. a preparation of gypsum used to improve the quality of paper.

ΘΚΠ

society > occupation and work > materials > derived or manufactured material > material for making paper > [noun] > others

handstuff1690

pearl hardening1871

Scotch fines1880

1871 Dann Specif. Patent 2237 2 To obtain pearl-hardening..for the manufacture of paper or papier mâché.

1920 C. F. Cross & E. J. Bevan Text-bk. Paper-making (ed. 5) 260 Sulphate of lime, or ‘pearl-hardening’, is usually sufficiently pure to put direct into the engine.

1963 R. R. A. Higham Handbk. Papermaking iv. 93 Calcium sulphate... A precipitated form known as pearl hardening or crown filler is also available.

单词	pearl hardening
释义	> as lemmas pearl hardening pearl hardening n. a preparation of gypsum used to improve the quality of paper. ΘΚΠ society > occupation and work > materials > derived or manufactured material > material for making paper > [noun] > others handstuff1690 pearl hardening1871 Scotch fines1880 1871 Dann Specif. Patent 2237 2 To obtain pearl-hardening..for the manufacture of paper or papier mâché. 1920 C. F. Cross & E. J. Bevan Text-bk. Paper-making (ed. 5) 260 Sulphate of lime, or ‘pearl-hardening’, is usually sufficiently pure to put direct into the engine. 1963 R. R. A. Higham Handbk. Papermaking iv. 93 Calcium sulphate... A precipitated form known as pearl hardening or crown filler is also available. extracted from pearln.¹adj. < as lemmas
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> as lemmas