dichromate造句
2024年05月31日 04:24:59
The main methods are: glass - electrodes method, potassium
dichromate method and statistical method.
采用的主要方法有: 玻璃电极法, 重铬酸钾法,统计学方法等.
Preferally, the anion portion of the salt is permanganate, iodate,
dichromate or hyperchlorite.
它的阴离子部分最好是高锰酸, 碘酸, 重铬酸或过氯酸根.
The reaction conditions on oxidation of 2 - methylpyridine to 2 - acid by oxidation of potassium
dichromate were studied.
研究了以2-甲基吡啶为原料,以重铬酸钾为氧化剂,利用化学氧化法合成 2- 吡啶甲酸的反应条件.
The proof is recoated with
dichromate emulsion.
将这张校样重新涂以重铬酸盐乳剂.