Cationic starch is widely used in wet end as strengthening, retention and drainage agent.

阳离子淀粉被广泛应用于纸机湿部，起增强、助留、助滤作用。

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The origin of charge in papermaking system and the up-to-date charge analysis techniques were introduced, and the importance of charge analysis for optimizing the PM wet-end was explained.

主要介绍了造纸系统中电荷的产生原因和目前电荷分析的方法，进而阐述了电荷分析对实现纸机湿部理想化运行的意义。

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This was followed by hail, which depleted the crop, and a very wet end to the summer.

WSJ: Will Lyons on Wine: The Bitter Economics of Sweet Wines

During the wet, water cascades off the plateau and submerges thousands of acres of the Top End, turning dozens of sandstone outcrops such as Ubirr into little islands.

BBC: Australia��s Top End

By the end of the study, the researchers showed that 9.3% of patients taking aspirin developed wet age-related macular degeneration (AMD) compared with 3.7% of patients who did not take aspirin.

BBC: Long-term aspirin 'blindness link'