塔顶的菲涅尔透镜。透镜的厚度和质量令人印象深刻。
Fresnel lens on the top. Thickness and quality of the glass are impressive.
在选定的试验条件下，甲缩醛收率可达89%以上，塔顶甲缩醛的质量分数可达0.99以上。结果表明，该工艺用于制备甲缩醛是可行的。
The experimental results show that the conversion and the purity of methylal in the distillate can reach 0.89 and 0.99, respectively, and the slurry catalytic distillation process is practic…
在选定的试验条件下，甲缩醛收率可达89%以上，塔顶甲缩醛的质量分数可达0.99以上。结果表明，该工艺用于制备甲缩醛是可行的。
The experimental results show that the conversion and the purity of methylal in the distillate can reach 0.89 and 0.99, respectively, and the slurry catalytic distillation process is practic…
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