查询词典 ventilation shaft

According to Jin, the arrangement of the return air shaft can be divided into a central type, right angle type and mixed -type ventilation system.

根据进、回风井的布置形式可分为中央式、对角式和混合式通风系统。

A shaft for ventilation or the passage of smoke (especially the smokestack of a ship).

一个排烟的通道。

Design of drainage system discharges the way of draining water and the sureness of the system to include; calculation of the water force of the pipeline, mainly includes the design of the crosswise pipe slop and pipe diameter and the design of the vertical pipe diameter; the design of the way of ventilation and the calculation of the ventilative pipe; the design of the inspection shaft to choose the sewage waste water pump.

本建筑为河南省某管理局综合办公楼，对给水排水系统的要求较高。主要设计包括：给水方式的确定，竖向分区的合理划定，管材的确定，管道的水力计算，加压设备和贮水设备的选择计算。排水系统的设计主要包括：排水体制及其排水方式的确定；管道的水力计算（主要包括排水横管的坡度管径的确定，竖管管径的确定）；通气方式的确定以及通气管道的设计计算；集水坑的选择计算并由此选择潜污泵。

He provides technical direction during projects involving industrial hygiene, indoor air quality, fungal and bacterial growth assessment and abatement, safety engineering, environmental health issues, injury and illness prevention, accident investigation, hazard communication, asbestos hazard assessment and abatement consulting, lead hazard assessment and abatement consulting, noise evaluation and control, confined space entry, tunnel and underground shaft gas testing, health and safety program and policy development, waste analysis, evaluation of ventilation systems and other engineering controls, assignment of personal protective equipment including respiratory protection, drinking water quality assessment, OSHA audits, material safety data sheet development, emergency response coordination and emergency preparedness, and international occupational health and safety regulations.

为凡是涉及以下内容的项目提供技术指导，包括工业卫生、室内空气质量、真菌和细菌生长评价及消除、安全工程、环境健康问题、工伤和疾病预防、事故调查、危害通识、含石棉物质监测与控制、铅危害评价与控制、噪音监测与控制、密闭空间进入、隧道和地下矿井气体测试、健康安全计划与方针发展、废物分析、通风系统和其他工程控制评价、个人防护用品使用、饮用水质量评估、OSHA审核、改进物料安全数据表、应急响应调节和应急准备，以及国内外职业健康与安全法规。

To establish an effective ventilation mode for fire fighting in the Qinling road tunnel, an experiment is carried out to study the temperature distribution and smoke propagation in the ventilation duct and shaft of the tunnel in case of fire..

为了建立火灾工况下有效的竖井通风模式，通过大比例火灾模型试验，对不同通风模式下，主隧道、风道及竖井内温度场的传播分布、烟流蔓延扩散规律进行了研究。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。