在进展

MIH is produced in the medulla terminalis of the X-organ and stored in the sinus gland of the eyestalk.

尽管最近在MIH的结构和功能的理解上取得了一些进展，但仍有许多重要的问题有待回答。

The fastenerstyle steel pipe falsework is applied extensively, and its calculation theory and design calculation method have been in fluence developing.

摘要］扣件式钢管承重支架目前得到广泛应用，在计算理论及设计计算方法上已取得重大进展。

In this paper, the advances in research of laser mutation breeding mechanism was expounded and the application and achievements in breeding of agriculture, pasturage, farrier and industry microorganism of laser mutation were introduced.

阐述了激光诱变育种机理的研究进展，介绍了激光诱变在农作物、畜牧兽医、工业微生物育种上的应用及取得的成果，并介绍了激光诱变育种的一般操作过程，最后展望了激光诱变育种今后的研究前景。

These DSs were first observed at 9 weeks in the distal part of ascending fibers that consist of gracile fasciculus and cerebellospinal-gracile nucleus and white matter of cerebellum. They extend along medulla oblongate to medulla cervix、medulla thorax、medulla lumbalis in accordance with dying-back type degeneration. The corticospinal tract were affected at 18 weeks,and thalamus、the olfactory pathway、the visal pathway、the auditory pathway were affected at 32 weeks.

这种DS从9周龄开始，首先在构成薄束路和脊髓小脑后路的上行纤维的远端区域-薄束核区和小脑白质出现，逐渐按照延髓、颈髓、胸髓、腰髓的顺序，向细胞体方向逆行性地进展。18周龄时波及到锥体路，32周龄时进一步波及到丘脑和嗅觉、视觉、听觉传导路。

The paper introduces some researches, such as a new method to calculate the added mass for the seismic analysis of the fuel assembly in fast breeder reactor, simulation on the vortex shedding of double heat exchange tubes in a steam generator, simulation on the vortex shedding caused by the cross -flow over plates in a fuel assembly of an advanced reactor, the research on the impacting phenomenon of the free-surface on the vessel head in a storage tank as the main vessel of the China Experimental Fast Reactor shaken by the earthquake, and the researches on the solution of the liquid sloshing by moving particle semi-implicit and the scattering phenomenon caused by sloshing, and so on.

本文介绍华北电力大学在该方面的一些研究进展，例如，快堆燃料组件抗震分析新的流体附加质量计算方法研究；蒸汽发生器换热管双管漩涡脱落的数值模拟；一个先进堆燃料组件平行板上流动引起的漩涡脱落数值模拟；由地震引起的自由表面对快堆主容器冲击现象的研究；移动粒子法求解液面晃动及晃动引起离散现象的研究等。

So to look for a kind of more effective and feasible healing solution is necessary.

虽然国内外学者经过多年的研究探索，在治疗方面已经取得一定的进展，但仍存在许多问题，例如早期发生的出血、坏死、炎性因子的释放和晚期发生的瘢痕等，因此寻找一种更有效可行的治疗方法成为研究热点。

The research advance, fertilization technology and application of carbon dioxide were discussed in this paper.

中文摘要：论文回顾了近年来CO_2施肥的研究进展、施用技术及在生产中的应用效果。

Summarized the research progress and prospects of plant fiber blending with other materials for biodegradable packaging materials.

介绍了植物纤维与其他原料共混后在生物降解包装材料上的研究进展及发展前景。

"Universal Studios do not have What progress, still awaiting final approval of the State Council departments."

"环球影城没有什么进展，仍然在等待最后批准国务院有关部门。"

In some cases, we have virtual agreement, but members are withholding finial consensus ro approval until they see how things emerge elsewhere.

在某些情况下，我们虽然达成了实质性的协议，但是世贸各成员国都保留着最后的批准权，直到事情有所进展。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐