模拟过程出错问题？ WARNING FEED STREAMS ARE NOT REFLASHED AT COLUMN PRESSURE DURING PRESSURE UPDATING CALCULATIONS. USING "FEED-CONV=ON-STAGE" FOR MIXED-PHASE FEEDS IS RECOMMENDED. 各位好，当出现这个，要怎么修改 查看更多4个回答 . 3人已关注
这段话是什么意思？ 俺毫无头绪的说？ A process for preparing N-(alkylaminoalkyl)acrylamides by catalytic decomposition of the corresponding .beta.-aminopropionamides has been discovered which can be run at relatively low temperatures. The results of the inventive process were surprising for alkylaminoalkyl amines such as the tertiary amino alkyl amine having a primary amine group tend to add more rapidly with the acrylic acid or ester carbon-carbon double bonds than do secondary dialkylamines. The reversal of the addition would then be expected to take place with more reluctance with the primary amines. Most unexpectedly, such is not the case in the practice of the present invention. The high yields of relatively pure, stable product were also unexpected since primary amines normally add back faster than secondary amines to form the corresponding .beta.-aminopropionamide starting materials. 仍然是那份专利文献，这是Description of the Prior Art部分的最后一段，我现在只能看懂其中第一句话，其他的全无头绪啊，真是急死人。 救人一命，胜造 7-floor pagoda啊，俺作揖先！ 查看更多9个回答 . 4人已关注
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