然而，在连续流加丙酸酐的半批式反应系统中，所有这些缺点均可有效地克服。

All these drawbacks, however, could be effectively overcome in a semi batch reaction system into which propionic anhydride was continuously fed.

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然而，在连续流加丙酸酐的半批式反应系统中，所有这些缺点均可有效地克服。

All these drawbacks, however, could be effectively overcome in a semi batch reaction system into which propionic anhydride was continuously fed.

youdao