英语语法分析

Evidence for antidiuretic control of rectal water absorption in the cockroach Periplaneta Americana l.

的翻译是：直肠吸水抗利尿剂的控制的证据在蟑螂大蠊属美国L。的。

Objective To observe the effect of AB cockroach attractant on Periplaneta americana and Blattella germanica.

目的观察AB型蟑螂引诱剂对美洲大蠊和德国小蠊的引诱效果。

Objective to study the inhibitory effects of the extracts of Periplaneta Americana on the growth of Porphyromonas gingivalis in vitro.

目的研究美洲大蠊提取物对体外培养的牙龈卟啉单胞菌的抗菌活性。