粒层

Two kinds of cross-linked polyacrylate latices with relatively narrow distribution of particle diameters, which are abbreviated to P and P/P, were synthesized by seeded emulsion co-polymerization, respectively. Butyl acrylate and 2-ethylhexy! acrylate were used as comonomers of ACR core, styrene and methyl methacrylate were employed as comonomers of ACR shell, and 1,4-butanediol diacrylate was used as cross-linking agent.

采用丙烯酸丁酯和丙烯酸2-乙基己酯(2-EHA)为核层单体、苯乙烯和甲基丙烯酸甲酯为壳层单体、1，4-丁二醇二丙烯酸酯为交联剂，通过多步种子乳液聚合方法合成了P、P／P两种具有窄粒径分布的共聚丙烯酸酯胶乳。

In addition, it is one important basic research for exploration and development of lithologic oil and gas reservoirs in deep-water areas.

深水细粒沉积层系的层序地层单元细分和对比，是建立合理的层序地层格架的关键，也是进行深水区岩性油气藏勘探开发的一项重要基础研究工作。

The Changxing Formation reef and shallow facies reservoir is a new type of reservoir having a great potentiality after Feixiaguan Formation oolitic beach was found.

长兴组生物礁和边缘滩相储层是普光气田继飞仙关组鲕粒滩后又一个具有巨大勘探潜力的储层类型。

Based on the failure analysis of hot roll, this paper optimizedly adjusts alloy system and summarizes the experience of rolling wiresand improves ail processing properties. Then, it analyses the effects on some natural parameters such as alloy transfer coefficient, surfacing layers, welding current and arc voltage etc.. It confirms the fitting ageing technique. Also, it discusses the microscopic structural transformation back and forth ageing and the effects on hardness change of overlaying metal by some alloying elements including C, Cr, V, W, Mo, Ni, Mn, B, Re through OM, SEM and X-ray diffraction analyses. Finally the abrasive resistance, red hardness, thermal fatigue property and anti-high temperature oxidability are investigated in experimentation.

全文在热轧辊失效分析的基础上优化调整合金体系，总结了焊丝轧制的经验，改善各种工艺性能，分析了几个特性参数的影响，确定了适宜的时效工艺，并通过光学显微镜、扫描电镜和X-射线衍射对时效前后的显微组织转变以及部分合金元素如C、Cr、V、W、Mo、Ni、Mn、B、Re对堆焊层硬度变化的影响进行分析，最后通过试验考察了堆焊层金属的耐磨粒磨损性能、红硬性、耐热疲劳性和抗高温氧化性。

The sand bodies are made of lithical sandstone with different size. Delta place subfacies and delta front subfacies has been distinguish in the range of oil fields, they were sub...

在大宛齐油区识别出了三角洲平原和三角洲前缘两个亚相并从中进一步划分出了8种微相，查明了康村组岩性由不同粒级的岩屑砂岩的组成，分流河道砂体、水下分流河道砂体和河口砂坝砂体是油气的主要储集层，储层在纵向上多期叠置、在横向上频繁迁移、尖灭和连续性较差。

The sac structure projected through the pollen aperture possesses the typical nature of transfer cell, i. e complex lybrinthian wall ingrowth and abundant mitochondria, RER, dicotysomes and ribosomes under the wall. Its outer surface is closely related to the tapetal protoplast. The accumulation of storaged material in pollen start at the area near the apertures. Above restults indicate the pollen apertures may be the"door"from where nutrition flows into pollen in P. hortorum.

绒毡层物质向花粉粒的短途运输明显的表现在花粉的萌发孔区，一方面形成向外突起的囊腔，另一方面在这里具有发达的壁迷宫，而且迷宫下具丰富的线粒体，RER和高尔基体等细胞器，此外花粉内贮藏物的大量积累首先从萌发孔附近开始以及萌发孔处与绒毡层有紧密接触都说明天竺葵花粉萌发孔可能是物质进入花粉的&门户&。

The stroma lamella has orderly ranked and the number of grana lamella increased.

基质片层排列趋于规则，基粒片层数增多，垛叠逐渐致密。

The research results are as follow: 1. Through the air convection experiment in laboratory, we find that the real measurement of natural convection in laboratory under obturated circumstances is almost sameness to theory calculation. The most notable part of air convection is in the middle part of crushed stones. The bigger the size of the crushed stones is, the bigger the measured wind value is.

主要结论如下： 1、通过室内模拟自然对流试验，得出在室内封闭条件下测得的自然对流效应跟理论计算值相差不大，自然对流效应最明显的部分位于块石层的中间部位；实测的对流涡包都是由一开始的无序状态往块石层的中间部位发展；随着块石粒径的增大，测得的最大风速值也随之增大。

Clay is the main mineral of interbedded mudstone of rock salt. The illites/smectite mixed-layer mineral is the main formation of clay in interbedded mudstone. Granule particle is main in interbedded mudstone. Interbedded mudstone slakes by stratification bedding and little expansion.

盐岩层间泥岩夹层的主要矿物为黏土矿物，黏土矿物的主要存在形式为伊利石／蒙脱石混成矿物；泥岩夹层主要为细粒颗粒；泥岩夹层沿层理面崩解，层状开裂软化，具有微膨胀性。

There are a series of sedimentary structures in turbidites,such as Bouma sequence,graded bedding, vertical fluid-escape tubes, dish structures,rip-up clasts,load structures, convolute bedding, slump structures and flute marks, etc.

湖底扇浊积岩中有一系列的沉积构造，诸如鲍玛序列、粒序层理、垂向液化逃逸管、碟状构造、撕裂屑、重荷构造、包卷层理和槽模等。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失