Qualcomm's initial products are only bichrome—black lettering on a background of, say, gold.
高通的最初产品只有单色──在背景色(例如金色)上显现黑色。
Qualcomm's initial products are only bichrome—black lettering on a background of, say, gold.
高通的最初产品只有单色──在背景色(例如金色)上显现黑色。
The optimal conditions for synthesis of alkali green 4 are reported,including the carbamide and zinc chloride as catalyst,chloranil and bichrome as oxidation agent in the acetic acid medium.
报道了合成碱性绿-4的最件:在醋酸介质中,尿素、氯化锌为催化剂,四氯苯醌和重铬酸钾为氧化剂;
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