恒定的吸风负压使纱线能够有效地被吸附，使络筒工序能够平稳地进行。
The stable negative-pressure system can effectively grab the yarn to make the winding process running properly.
负pcr的工作原理就像风对汽车的阻力一样：踩油门越困难，提速时风的阻力就越大。
Negative PCR works like wind resistance does on your car: the harder you put your foot down, the more the wind impedes any further increase in your speed (see "It pays to be negative").
针对控制呼吸道传染病的要求，采用了房间负压控制、合理的气流分布、高效过滤排风等技术，取得了较好的效果。
To control the respiratory infection, some measures are taken such as ward negative pressure control, reasonable air distribution and high efficiency exhaust air filtration, obtaining better effects.
本文又在负压区运用了正压井、负压井、动态气流密封负压高效排风装置等一系列有价值的措施，并在理论上证实其实用意义。
Some measures such as the positive pressure well, the negative pressure well, the high efficiency exhaust sealed with dynamic air current are all effective in theory.
风扇环形外腔产生的正压湍流射流在内腔负压汇流作用下形成锥形风幕流场，将处于流场范围内的气体及粉尘严密封闭起来，使安全生产得到保障。
The tapered windscreen flow field of the fan is composed of the outer ring turbulent jet and the inner sink, which tightly closes gas and dust to ensure the safety production.
根据气体动力学原理，对纺粘法非织造工艺中负压拉伸的下吸风装置进行了理论研究，并通过计算风道流场中的各参数，改造下吸风装置。
The spunbond suction drawing system was studied according to the gas-dynamic theory, and it was modified by calculating various air current parameters of the drawing system.
奥氏体等温淬火球铁产品，包括ADI造纸磨片，为美国英格索兰公司生产的ADI风稿缸体和机头、以及国内负稿缸体系列产品。
Products: austemper ductile iron products, including of milling plate for paper making , ADI cylinder body and machine head supplied to one of USA company and the user in domestic customer.
介绍了中药制剂厂房洁净空调系统针对不定时开启局部除尘排风造成系统压差不能保证的解决方案；集中式多个子洁净空调系统操作室对洁廊相对负压的解决方案。
In cleaning air conditioner used in Chinese drug factory, if the local dust removing air discharge is not turned on in time, the differential pressure in the system cannot be kept.
负压排风装置可有效预防可燃气体正压爆炸，保证安全生产；
The negative pressure air exhausting device can effectively prevent combustible gas from exploding under positive pressure so as to ensure safety production.
它还有一套风运装置，由风机的进风口负压实现粮食的风运收集。
The utility model is also provided with a set of winnowing device, and grains are winnowed and collected by the negative pressure of an air intake of a blower.
它还有一套风运装置，由风机的进风口负压实现粮食的风运收集。
The utility model is also provided with a set of winnowing device, and grains are winnowed and collected by the negative pressure of an air intake of a blower.
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