The odd bead of sweat was dewing his brow.

几滴汗珠弄湿了他的前额。

Conclusion Dewing on the wall could be prevented effectively by thermal insulation together with local ventilation.

结论采用壁面隔热和局部通风相结合的方法，可以有效地达到防止结露的目的。

The rate of parasiting to the oriental armyworm is seriously influenced by the day number of raining of April and of dewing from 11-25, March of last year.

对寄生率影响较明显的为侵染期的降雨日数和前一年线虫脱出高峰期的露日数。

On the other hand, cryogenic compressed air in the heat exchanger temperature rise, so that the exhaust pipe is not caused by low temperature and dewing phenomenon.

另一方面，低温压缩空气在热交换器里温度得到回升，使排气管道外壁不致因温度过低而出现结露现象。

PC board with pervious to light quality, impact resistance, heat insulation, weather resistance, prevent dewing excellence, flame retardant, sound insulation and processing function.

PC板具有透光性强、抗冲击、隔热、耐候、防结露、阻燃、隔声和超卓的加工功用等。

This increase the waterside temperature and the wall temperature of the ion-exchangers up to dewing temperature of environment, thus prevent ion-exchangers from dewing and corrosion.

通过提高水温，使离子交换器外壁温度处于环境湿空气的露点温度以上，从而避免了离子交换器夏季结露现象的发生，减缓了设备的腐蚀速度。

Sloping roof window is often used by single layer for keeping warmth, with low thermal effect in the front walls, so the phenomena of dewing is more serious than the plastic steel window.

老虎窗侧一般制做单侧保温，正面墙体的热工状况较差，因此结露的现象更加严重。