挥发器

Acetone has been in common use as a solvent and as an extracting regent, in industry for several decades. It is easy to evaporate in air. When the concentration of acetone in air is higher than 10,000 ppm, people may experience such symptoms as cephalalgia, nausea and so on.

由於丙酮是工业上广泛应用的溶剂，它极易挥发，且当人体曝露在高浓度的丙酮下，会有头痛、困倦及呕吐等症状，所以丙酮感测器可应用於工业的环境检测。

A new high flow rate,multichannel parallel plate denuder sampling system has been developed which is capable of determining the particle size distributions and the semi-volatile organic compounds which can be lost from particles during sampling.

已研制出一种新的高流速率，多通道平行盘溶蚀器取样系统，它能确定微粒大小的分布，以及在取样期间从微位失去的具有半挥发性的有机混合物。

The purpose of this study was to measure the gaseous inorganic acids / bases and volatile organic compounds emitted during the business of central Taiwan Science Park, and establish the air quality data. Two sampling sites were located in the north and south of the Park. The measuring instrument was the annular denuder system for inorganic acids and bases and the method for VOCs' measurement was according to Taiwan's EPA method NIEA

中文摘要本研究之目的乃在建立中部科学园区之空气品质污染物浓度资料，监测地点为基地北侧的土地公庙及南侧的国安国小，监测污染物包括空气中气状、粒状的无机酸碱及挥发性有机化合物等气体，监测仪器及方法依据则分别为环型扩散采样器及环保署环境检验所公告之NIEA A715.12B方法。

Extraction into circulation, flat-bottomed flask together with the extraction cycle will be shifted ventilation Chuli, flask on the heater.

并用胶带将烧瓶与循环萃取器及循环萃取器与冷凝管的两个接口密封起来，防止有机物挥发。

In this paper we summarized the research on mosquito olfaction and chemical ecology in the past 20 years.

蚊虫的触角、下鄂须和口喙上的嗅觉感器感觉环境中释放的各种挥发性化合物。

But the kind cooking cooked food with household the fuel wastages , edible oil sigmatism amounts, and quantity be increasing by unceasingly; Furniture waits for civil chemical products to enter a family with the fact that a great quantity is able to wield various building material , decoration material , artificial board sending out hazardous wastes , people increases by in interior the kind contacting hazardous wastes and quantity than in the past obvious , that interior air is difficult how to handle?

但随着家用燃料的消耗量、食用油的使用量、烹调菜肴的种类和数量都在不断地增加；随着大量能够挥发出有害物质的各种建筑材料、装饰材料、人造板家具等民用化工产品进入家庭，人们在室内接触有害物质的种类和数量比以往明显增多，那室内空气不好怎么办？于是就有空气清新器、空气清新剂、空气加湿器……等一堆科技成果不断应用，这表面上让人感觉放心、方便、舒适了，可实际上是降低了人体的自我保护能力。

The essential oil of Chimonanthus nitens was extracted by the volatile oil extractor, and analyzed by capillary gas chromatograph-mass spectrometry.

采用挥发油萃取器蒸馏法提取山腊梅叶的挥发油性成分，经毛细管气相色谱－质谱联用仪分析，鉴定了其中的72个挥发性化合物。

Air dryer is a mechanical equipment which can make the moisture(generally means water or other evaporable liquid) in material change into vapor and evaporate by heating, so that the solid material can reach the required humidity ratio.

空气干燥器是通过加热使物料中的湿分(一般指水分或其他可挥发性液体成分)汽化逸出，以获得规定湿含量的固体物料的机械设备。

The yield, chemical components and relative contents of essential oil extracted from Eupatorium adenophorum Spreng by Soxhlet extraction and steam distillation were compared. The volatile chemical constituents of essential soil extracted were analyzed by Gas Chromatography-Mass Spetrometry. The results showed that the constituents of the volatile from the same plant and the relative contents were significantly different due to different extraction methods.

采用索氏提取器及水蒸气蒸馏两种方法对采于不同时间、不同产地的紫茎泽兰Eupatorium adenophorum Spreng挥发性成分进行了提取，比较了两种方法的得油率、化学组成及其相对含量；采用GC-MS联用技术对其中的挥发性成分进行了分析。

After analyzing the properties of the crude volatilizing gas in overhead tank and the requirements of its recovery method,an effective way of recovering by natural gas through the matched multistage ejectors is proposed and in combination with the experimental results of two sets of systems under multiple operating mode,some main points of design and mana...

在分析了高架罐原油挥发气的性能特点及其回收方法的要求以后，提出了通过匹配式多级喷射器利用天然气进行回收的有效途径，并结合两套系统多种工况下的试验结果，给出了以方便工程应用为准则的匹配式多级喷射器的设计管理要领：全压缩比的分配，两级时，第一级约为第二级的 1.4倍；三级时，第一、二级应分别为第三级的 1.8倍和 1.3倍左右；设计点要选择在工作气体参数范围的下限或下限附近；整套系统串联的级数以 2～ 3级较为合适，一般不应超过 4级；在高架罐的耐压范围内，原油挥发气的压力越高对回收越有利

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。