Because the substitutes do not have cell membranes with blood-group antigens,cross matching and typing are not required before use. 因為替代品沒(méi)有含有血型抗體的細胞膜，使用之前不需要交叉配血實(shí)驗。
This derivation is only valid if no chain scission accompanies cross linking. 這一關(guān)系式僅適用于交聯(lián)時(shí)不伴有斷鏈發(fā)生的情況。
The paper outlines also the mechanism of cross linking of gelatin molecules by the hardener. 文中還解釋了這類(lèi)堅膜劑與明膠發(fā)生交聯(lián)反應的機理。
