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The hydroscopic expansion coefficient of grains is an important physical parameter for prediction of bulk densities and study of internal stresses of grain kernel during adsorption and desorption.

湿膨胀系数用于预报谷物堆密度和研究谷粒应力裂纹产生原因等研究。

Comparison of samples of different grain sizes from the Ataiwula property in Dong Ujimqin Qi and Moruogeqin in Abag Qi shows that micro grains of metallic minerals are mixed inhomogeneously in debris carriers.

在东乌旗的阿太乌拉地区和阿巴嘎旗的莫若格钦两地，对比不同粒度的样品，发现金属矿物微颗粒以物理状态不均匀地混合在岩屑介质内。

The misorientation of β grains distributes inhomogeneously, and is improved after HIPing. But misorientation of γ-TiAl around interphase changes oppositely before and after HIPing. The crystal lattice of γ phase around fiber distorts due to the residual stress between β and TiAl matrix.

铸态界面相β晶粒间取向差分布不均，热等静压后有所改善，而对于界面相外侧的γ-TiAl晶粒来说变化趋势相反；复合材料中界面相β和TiAl基体间存在有残余应力，导致TiAl基体局部区域中产生晶格畸变。

Lots of starch grains in nucellar cells and integumentary cells surrounding endosperm haustoria decreased and disappeared with the development of endosperm haustoria.

随着胚乳吸器的发育，吸器附近的珠心细胞和珠被细胞中贮存的大量淀粉粒逐渐减少和消失。

In summary, Although in recent years combine development is swift and violent, But because our country vast in territory, The climate and the geography condition as well as the cultivated variety, the planter way have the big difference,Adds on the economical development not to be balanced, Some harvested the machinery jointly the performance and the part key technologies still is not mature,In next period of time, Thresher in our country's grain crops harvest work, Specially in the mountainous area, the knoll patch of land, the interplanting and the miscellaneous grains planted the area was still the essential work machines and tools.

综上所述，尽管近几年联合收割机的发展迅猛，但由于我国地域辽阔，气候和地理条件以及栽培品种、种植方式有较大的差异，加上经济发展不平衡，有些联合收获机械的性能和部分关键技术尚不成熟，在今后一段时间内，脱粒机在我国的粮食作物收获作业中，特别是在山区、丘陵小块地、间作套种和杂粮种植地区仍是不可缺少的作业机具。

The precipitation of SiO〓 from ZrSiO〓 grains and the isopachous strip were revealed by TEM micrographs as the microstructural characteristics of TZ30 sample fabricated at 1500℃/lhr.

高分辨电镜研究表明，在两晶粒晶界（包括ZrO〓/ZrO〓晶界和ZrO〓/ZrSiO〓晶界）以及三晶粒晶界上均无残留的SiO〓玻璃相；这种晶界构型对高温力学性能是极为有利的。

The grains of semi-solid billet isothermally reheated over liquidus temperatures 640 and 650 ℃ are much finer than those at solidus-liquidus zone temperatures 620 and 630 ℃, but the spheroidization degree is slightly lower.

组织演变机理分析表明，提高等温温度，液相形成速度加快导致晶粒合并受到一定的抑制是晶粒细化的主要原因，而保温时间的缩短则是晶粒球化程度降低的原因。

Most of zircon grains from lamprophyre have 206Pb/238U weighted average ages of 46.2±2.1Ma, representing the time of lamprophyre forming.

研究区辉绿玢岩锆石多数颗粒的206Pb/238U加权平均年龄为46.2±2.1Ma，代表了岩浆侵位结晶形成辉绿玢岩的年龄。

BST doped with proper amount of La could restrain the largen of grains, improve dielectric constant and decrease dielectric loss, whereas La_4Ba_4Ti_7O_(24) raised when more La doped, and it was harmful to dielectric properties.

适量La掺入BST中，能抑制晶粒长大，增大介电常数和降低介电损耗，但La掺杂过多会产生La_4Ba_4Ti_7O_(24)相，有损介电性能。

Most of such dendrite cores are distributed in the grains with an elliptical morphology; some of them lie in the grain boundaries with triangular or lathy morphologies. There are few dislocations and substructures in the dendrite cores, and there are clear phase boundaries between such dendrite cores and the matrix.

Ni合金过冷熔体中亚稳相和稳定相的竞争形核的计算与实验结果定性吻合，即当熔体过冷度大于某一临界过冷度时亚稳相将作为初生相从过冷熔体中析出，通过分析发现瞬态形核理论能更好的描述深过冷熔体中的竞争形核问题。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。