查询词典 particulates

Lots of factors,such as the virus infection, the acarid and dust in the room, the blackbeetle, the tobacco smoke, the air pollution, the chemical stimulation and the like , can trigger bronchial asthma. The contamination of suspending particulates with the diameter less than 2.5 micron in the atmosphere is the main reason that makes mortality ascend,for the contamination can aggravate the hypersusceptibility which embitter more and more people .

支气管哮喘也称哮喘病，病毒感染、室尘螨与蟑螂等变应原触发因素，以及烟草烟雾、空气污染、化学刺激等均可引起发病，大气中直径不足2.5微米的悬浮微粒污染物是导致死亡率上升的因素，微粒污染会加剧人体过敏反应，全球遭受过敏之苦的人数正与日俱增。

They provide oxygen conversion, filtering of air particulates, erosion control, air and surface cooling to offset miles of new asphalt, cement, and rooftops.

他们提供的氧气转换，过滤空气中的微粒，侵蚀控制，空中和地面冷却，以抵消英里新的沥青，水泥，及天台。

The authers fetched the embryo calvarial peristeum tissue, got human osteoblast by enzyme-assimilating methods and tissue-block culture methods. We observed the morphological change, growth feature and osteogentic capability, of osteoblast during culture in vitro with phase contrast invert microscope, drew the growth curre and identified the cells by alkaline phosphatase dye. At same time, the morphology and bioactivity of 3-5th-generation osbeoblast and anabiotic cells was studied comparatively. 2. titanium particles were examined by scanning electron and the size was determined by semi-automated image analysis. The 3-5 th gereration of human osteoblast were cultured in medium with different concentration of particulates titanium alloy (1mg/ml, 0.1mg/ml, 0.01mg/ml). Cell growth and proliferation was detected by MTT method after 2、4、6 days that particles were added into medium and ALP activity was measured by kit after 4、7、10 days respectively. 3. With above same methods,the 3-5th generation of human osteoblasts were cultured for 3、6、9days after different concentration of particulates titanium alloy (1mg/ml, 0.1mg/ml, 0.01mg/ml) were added into the medium and OPG gene expression was quantified by RT-PCR.

1、取人胚胎颅骨骨膜，采有用酶消化法和组织培养法获取成骨细胞体外培养并传代，观察细胞形态，生物特点及成骨特性，并绘制生长曲线同时碱性磷酸酶染色鉴定成骨细胞以及比较冻存前3-5 代与冻存后成骨细胞的特点。2、电镜下观察钛合金颗粒的形态并测量其粒径，将不同浓度的钛合金颗粒(1mg/ml，0.1mg/ml，0.01mg/ml)与成骨细胞共同培养，分别于第2、4、6 天用MTT 法测量细胞增殖情况及4、7、10天用试剂盒检测碱性磷酸酶活性。3、分别将不同浓度的钛合金颗粒(1mg/ml，0.1mg/ml，0.01mg/ml)与成骨细胞基因培养3、6、9 天用RT-PCR 方法半定量测定骨保护素基因mRNA 的表达。

5The distribution patterns of rare earth element compositions in the hydrothermal components are similar to that of pacific seawater. This infers the complex and significant interactions of hydrothermal fluid with surrounding seawater during its diffusing process. Dissolved trace metals in the hydrothermal fluid can be removed by settling terrigenous or biogenic particulates and precipitated quickly from the hydrothermal plume round the vent. On the other hand, hydrothermal particulates would also scavenge some elements from the seawater to coprecipitate into the sediments.

5岩芯沉积物中热液源组分携带的稀土元素组成具有类似海水的分布模式，反映了热液流体喷出海底后与其它物源物质之间的复杂的相互作用：一方面大量生物和陆源碎屑物质的快速沉积导致溶解态的热液源物质被快速清扫，无法向外扩散，快速堆积在热液喷口附近；另一方面，随热液羽状体向外扩散的颗粒态热液源物质也清扫海水中的元素共同进入沉积物。

The results from electron micrographic analysis show that soot oxidation is influenced by aggregation and agglomeration of soot particulates, at the same time, the crystallograms show that the previous soot particle is non-crystal carbon, but in the latter conbustion period, a very small amount of crystal soot with unstable lattice at relatively higher flame temperature is formed. The crystallization happens greatly in period of combustion when temperature is relatively lower. The smoke particulates consist of crystal carbon similar to chaoite crystal latice and noncrystal carbon.

碳粒浓度和KL变化曲线表明预混合火焰中碳粒浓度远远小于扩散火焰，其原因在于不均匀的燃油—空气混合气结构在高温缺氧条件下产生大量碳粒，在温度峰值附近碳粒浓度亦达到峰值，其后迅速氧化，当温度低于2000°K时碳粒基本上不氧化，碳粒的电子显微分析表明碳粒的氧化受碳粒的集聚过程的影响，在燃烧初期碳粒是非晶体，碳粒的结晶在燃烧后期和排放过程中大量出现，排放碳烟微粒由晶体和非晶体碳组成。

After quenching, the phases of the composite are as same as the as-cast composite, but the morphography of TiC particulate was transformed from square to sphere, some TiC particulates coarsen due to the precipitation of the solid-soluble TiC particulates; the other TiC particulates change into the smaller spherical particulates due to the solution of the sharpangled portion of the quadrate TiC particulates.

热处理后，复合材料的相组成不变，但是TiC颗粒由方形变成球形，固溶析出的TiC颗粒在某些TiC颗粒的表面沉积，使后者粗化；另一些方形颗粒的尖角处溶解形成直径更小的球形TiC颗粒。

The removal characteristics of diesel particulates of diesel particulates with the attapu;gite slurry were investigated .

实验研究了天然凹凸棒石黏土吸收剂脱除柴油机碳烟的特性。

There are more than 34,920 tons joss papers and 4,910 tons incense burned at from the temples in Taiwan every year. Emissions evaluation of air pollutants from joss paper and incense burning may be estimated as follows: joss paper: 67.0 tons NOx, 1.05 tons SO2, 1,158 tons CO, and 1,207 tons particulates. Incense: 15 tons NOx, 0.81 tons SO2, 1,592 tons CO, and 71 tons particulates.

台湾地区寺庙每年燃烧金纸及拜香分别约34，920公吨及4，190公吨以上，燃烧金纸平均每年产生NOx 67.0公吨、SO2 1.05公吨、CO 1，158公吨及悬浮微粒1，209公吨以上；每年燃烧拜香平均产生NOx 15公吨、SO2 0.81公吨、CO 1，592公吨及悬浮微粒71公吨以上。

An Al base composite material reinforced by nanometre sized SiC particulates has been prepared by using powder metallurgy technique. Its microstructure and properties were examined in comparison with similar composite reinforced by SiC particulates sized in micrometre.

用粉末冶金方法制备了纳米尺寸SiC颗粒增强铝基复合材料，并将其组织及性能与相同工艺制备的纯铝和微米尺寸SiC颗粒增强的铝基复合材料进行了对比。

Through XRD analysis, as the temperature of cosolvent and mass transport goes up, the wave peak intensify of tin dioxide becomes more obvious. By means of SEM, tin dioxide particulates are found evenly distributed on the matrix and the quantity of particulates become higher with the increasing cosolvent concentration. The size of particulates is about 30-50nm.

经XRD分析，复合材料中二氧化锡之波峰强度随潜溶剂浓度与质传温度之增加越趋明显；SEM观察则发现，二氧化锡颗粒析出物系均匀分布於基材内，且析出物的含量随潜溶剂浓度增加而增加，析出物的尺寸约30-50nm。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。