多聚甲醛,仲甲醛;
One-step synthesis of salicylaldehyde with phenol and paraformaldehyde as raw materials along with catalyst is introduced.
介绍了以苯酚和多聚甲醛为原料,在催化剂作用下,经一步反应直接合成水杨醛的情况.
It'showed paraformaldehyde solution was a good fixative for fixation in field.
证明多聚甲醛溶液是一种良好的真菌野外固定剂.
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