Well, we'll ship the bichromate in steel drums and the chromic anhydride in oil cans.嗯, 我们会把重铬酸盐用钢桶装,而无水铬酸则用油罐装.Objective To observe the germicidal efficacy of compound potassium bichromate acid solution and its inf...
The same old favorites recur year in year out with monotonous regularity.相同的决心以单调的规律年复一年地出现.Is there any regularity in English word stress?英语的重音有什么规律吗？Aircraft passed overhead with monotonous regularity .飞机一次又一次反复从头顶飞过。J...
To his 19th-century peers, Robert Brown was the prince of botany.对于19世纪的同行来说，罗伯特·布朗是植物学巨匠。The coverage of the subject in his botany text is inadequate.他的植物学教科书中对那题目的叙述不充分.Dr. Williams instructs us in botany.威廉博士教我们植物学....