灰

Adult winter Heuglin's Gull: Note dark saddle, head streaking typically restricted to nape and "collar", bright yellow legs (which usually become a much duller yellow mid-winter) and old primaries lacking white tips.

灰林银鸥成鸟冬羽：注意其鞍部羽色暗灰、头部纵纹一般仅限於后颈及领部、脚鲜黄色(在冬季中期会变得较暗黄色)、而且初级飞羽旧羽没有白色羽尖。

The resources,production and application of wollastonite in China were introduced,and the surface modification and the characterization method were analyzed.

主要介绍了我国硅灰石资源、生产及应用现状，并对硅灰石的表面改性及其表征方法进行了分析。

X-ray diffraction analysis,viscosity and refining of the glass in which the limestone was substituted by wollastonite were investigated.

对玻璃配合料中硅灰石取代不同比例的石灰石进行X-射线衍射、粘度和澄清效果的研究，结果表明硅灰石可以显著降低能耗，降低玻璃的粘度，提高澄清的效果。

In addition, the thermal expansion coefficient of wollastonite is close to that of Ti alloys. It indicates that wollastonite coating is tightly bonding to Ti alloy substrate.

与生物活性玻璃类似的组成保证了硅灰石具有良好的生物活性；相近的热膨胀系数使硅灰石涂层能与钛合金基体牢固的结合。

In this paper, six wollastonite fillers with different kinds of surfaces characteristics were designed to modify properties of polypropylene and the effects on the mechanics performance, interfacial effect and crystallizing behavior of composite material were studied.

本论文研究设计了六种硅灰石填料对聚丙烯进行填充改性，研究了不同表面特性的硅灰石对聚丙烯力学性能、界面效应和结晶行为等的影响。

The influence of factors such as W/C,sand percentage,water reducing agent and wollastonite is analyzed and the optimum proportion is given in this paper.

阐述了研究开发特重高强混凝土的重大意义，提出了制备技术和途径，说明了原材料及其性能要求，介绍了正交试验法设计特重高强混凝土配合比的方法，分析了水灰比、砂率、减水剂和硅灰等因素对特重高强混凝土的影响，在此基础上给出了最优配合比。

If through appropriate technique to stimulate the activation of the low class fly ash we can make the early and late strength of alit both raised, the value of the low fly ash will be raised to a high level.

近年来，随着对粉煤灰潜在效应认识的不断深入，粉煤灰使用的情况得到了很大改：善，但仅限于质量较好的Ⅰ、Ⅱ级灰，而量大且分布广的低质灰的利用率仍然很低，如果通过适宜的技术可以激发低等级粉煤灰的活性，使其早期强度和后期强度均得到提高，将极大地提高其自身价值。

The differentiation states of costae indicates the ways they absorb and transport water, and their ability adapting to the dry conditions, which was elucidated by the following examples: Brachythecium plumosum, because of its thin cell-walls in the costae and the absence of hydrome, assistant and steroid cells, can absorb water and nutrition under shady and moist conditions; Plagiomnium rostratum, though often grows in shady and wet condition, has hydrome and steroid cells, a feature similar to those of xeric mosses, which endows it to grow in the conditions with periodical drought stress during its life cycle; Hygrohypnum luridum is characterized by its slender leaves with only one layer of cells, the thin cell-walls, the absence of filaments on the leaf surface, and the fewer layer cells in the costae, the absence of hydrome and steroid cells. These features make it adaptable to aquatic environments. For Pogonatum inflexum and Atrichum undulatum, their ventral surfaces covered with lamella, while for Racomitrium japonicum, Thuidium cymbifolium, Macromitrium ferriei, Diphyscium fulvifolium, Barbula unguiculata and Ceratodon purpureus, their leaves are strongly mammillose or papillos. Such appendiculate structures made them adaptable to thy conditions.

例如，荫湿生环境下的羽枝青藓Brachythecium plumosum，其中肋细胞胞壁较薄，无导水主细胞和副细胞的分化，也没有厚壁细胞分化，能够在阴湿环境下吸收水分和养分；钝叶匍灯藓Plagiomnium rostratum具有与旱生藓类植物相似的中肋结构，叶片较厚，中肋具导水主细胞，中肋背面具厚壁细胞，这些特点使该种藓类植物能够分布于间隙性干旱胁迫的环境中；水灰藓Hygrohypnum luridum叶片纤细柔弱，仅1层细胞，细胞胞壁薄，叶表无附属结构，中肋细胞层数少，无导水主细胞分化，也没有厚壁细胞，这些特点使得水灰藓'能够生长在水生环境中；东亚小金发藓Pogonatum inflerum和波叶仙鹤藓Atrichum undulatum的叶腹面覆盖着栉片，东亚砂藓Racomitrium japonicum、大羽藓Thuidium cymbifolium、福氏蓑藓Macromitrium ferriei、东亚短颈藓Diphyscium fuhifolium、扭口藓Barbula unguiculata和角齿藓Ceratodon purpureus的叶片表面有乳头状突起或疣状物，这些附属结构使它们能够适应于旱生的环境中。

Shell Mysella is a large range of specialist lubricants, from ashless products through to high ash type s.

壳牌迈施力系列是一个产品众多的专业润滑剂系列，包括从无灰型到高灰型的产品。

Shell Mysella is a large range of specialist lubricants, from ashless products through to high ash types.

壳牌迈施力系列是一个产品众多的专业润滑剂系列，包括从无灰型到高灰型的产品。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。