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By dilatometric change and microscopic test, the critical point at Ac1、Ar1、Ac3 and Ar3 of ML40Cr steel was detemined in Gleeble-3800 the thermal-mechanical simulator. The continuous cooling transformation diagram of ML40Cr steel was obtained by measuring the expanding curves of different cooling rates. The mechanical property and transformation of austenite were analyzed. The proper range of control cooling rate about ML40Cr cold heading steel was found. All those provide the reference for productive practice to develop cold heading steel.

在Gleeble-380热模拟试验机上采用热膨胀法－金相法测定了ML40Cr钢的临界点Ac1、Ar1、Ac3、Ar3，同时测定了在不同冷却速度下过冷奥氏体连续冷却时的膨胀曲线，获得了该钢的连续冷却转变曲线；研究了ML40Cr连续转变冷却过程中奥氏体转变过程和转变产物的组织和性能，初步确定了ML40Cr盘条的控制冷却范围，为冷镦钢ML40Cr盘条的开发提供了参考依据。

Wangzhuang Coal Mine system is basd on heading machine robotization technology .The new mechine achieve many new fuctions, such as automatic cut-off section, track-line monitoring of cutting, remote control, heading machine automated monitoring or dynamic information and so on. It reduces the labor intensity, improves the operating environment and productivity.

摘 要：王庄煤矿工作面系统以掘进机自动化技术为主导，研发的自动化掘进机实现了断面自动截割成型、截割轨迹在线监测、远程遥控、掘进机动态信息自动化监控等功能，极大地降低了工人的劳动强度，改善了作业环境，提高了生产效率。

The results showed that there were differences among treatments in transformation of high quality gene(Glu\|D 1 5+10) in F 1 grains, and heterozygous type was more frequently appeared in the treatment of irradiation. In the F 2 segregative population, heading date deviated to early\|mature parent in the treatment of reciperocal cross and its combination with irradiation, indicating that cytoplasm and irradiation could promote the heading. In F 3 the expressive frequency of (5+10) gene in the cross was lower than that in reciperocal cross, and irradiation treatment could raise the expressive frequency of(5+10) gene. These results showed varience in different crosses.

结果表明，不同组合处理间F1籽粒优质亚基(Glu D15+1 0 )的转化存在差异，辐射处理的多以杂合型出现。F2 分离群体中，反交及反交结合辐射处理的抽穗期明显倾向于早熟的亲本，细胞质与辐射具有促进抽穗期的作用。F3 植株Glu D15+1 0亚基的表达频率，不论是哪种组合，反交时 5+1 0亚基的表达频率高于正交；无论正交还是反交，辐射处理提高了 5+1 0亚基的表达频率，而且在不同组合间存在差异。

Mol-1 of ozone are compared to those from the control run, indicating that from the heading to mature stage contents of chlorophylls a and b as well as the total increase first and then drop, but the carotenoid content and the value of value of chl a/b keep steadily rising and declinling, respectively, there is no significant decrease in the net photosynthetic rate and stomatic conductance during the early stage of heading but their drops increase gradually with prolonged smoking time.

mol-1的O3处理下，与对照相比，从抽穗期到成熟期冬小麦叶绿素a、叶绿素b和总叶绿素含量均呈先上升后降低的变化趋势，而类胡萝卜素的含量和Chla/b的比值则分别持续升高和下降，净光合速率和气孔导度在抽穗初期无明显下降，但是随着熏蒸时间的增加下降幅逐步变大。

Therefore, the main goal of this study is to introgress the three heading date genes of TNG67 to Koshihikari by MAS, and finally to establish several NILs of Koshihikari with different heading dates, suitably cultivated in Taiwan.

本试验目的即利用分子标帜辅助选种的方式，将此台农67号三个基因导入越光中，期望调整越光抽穗期，最终目的为建立越光近似同源系，以适合台湾地区种植与栽培。

By the method of random tenuiflora population on the alkalized meadow in the Songnen Plains of China were collected at early heading, heading, flowering, and milky stages, respectively, and the plasticity of their quantitative characters was analyzed.

在松嫩平原碱化草甸，采用大样本随机取样的方法，研究了不同时间到达抽穗初期、抽穗期、开花期和乳熟期的星星草种群生殖分蘖株数量性状的可塑性及其调节规律。

In order to solve the contradiction between the traditional system of magnetic heading measurement and design requirement for the size of fuzes,a new method of magnetic heading measurement for spinning projects is put forward.

为解决磁航向测量系统与引信设计空间要求构成的矛盾，提出一种新的用于测量旋转弹丸磁航向的方法。

The result showed that there were significant effects of different sowing stage on the growth stage, the sprouting of axillary bud and yield of ratooning rice, rice sowed on March 31 was best, and the grain yield was highest that sowed on April 11 was worse, but it could mature normally, that sowed on April 19 could not reach full heading stage before safely full earing date, so some panicles could not be heading or could not mature normally.

结果表明：不同播种期对再生稻生育期、腋芽萌发和产量均有明显影响，以3月31日播种的腋芽萌发好，再生季产量高，4月11日播种的腋芽萌发较差，但能正常成熟，4月19日播种的腋芽萌发差且不能在安全期内齐穗，导致部分穗子不能抽穗或能抽穗但不能正常成熟。

The details is described as below: mixed with water and evenly atomized, 30-50g/mu for rice seedling, jointing, heading, flowering and filling stages; mixed with water and evenly atomized, 30-50g/mu for wheat seedling, stooling, heading, flowering, maturing stages; 30-50g/mou for corn seedling, big-horn tasseling, and maturing stages, mixed with water and evenly atomized, 26-32 days of drought resistance period.

具体为：水稻苗期、拔节期、穗期、扬花灌浆期30～50g/亩，兑水均匀喷雾；小麦苗期、分蘖期、穗期、花期、灌浆成熟期，用量30～50g/亩，兑水均匀喷雾；玉米苗期、大喇叭口期、抽雄期、成熟期用量30～50g/亩，兑水均匀喷雾，防旱期26～32天。

The heading isn't your header, but a heading can be in your header.

标题不是你的页眉，但是标题可以包含在你的页眉当中。

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。