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This paper analyzes the principle of the LP-LFC process,presents the physical and mathematical models of mould filling of the new process. The patterns including window-plate, ladders cluster, electromotor frame and exhausting manifolds are poured using LP-LFC process with AZ91D alloy, and the mould filling course is tracked with electrode touch point method. Based on above tests and experiments,the casting defects including short runs, cold laps, trapped gas,metal penetration, and so on, were investigated. The appearance characteristics,birth causes and influence factors of above defects are discussed in the article,diagrammatize modes of the defects forming is also given, and the measures of reducing or avoiding defects are put forward.

本论文分析了低压消失模铸造技术的工艺原理，建立了低压消失模铸造过程中金属液充型的物理和数学模型；在各种工艺条件下浇注了薄板窗体、阶梯模样簇、电机外壳和发动机排气管四个典型的模样和产品，用电极触点法记录了镁合金低压消失模铸造的充型过程；试验研究了镁合金低压消失模铸造中出现的浇不足、冷隔、气孔、粘砂等典型缺陷，分析了这些缺陷的形貌特征、形成原因及影响因素，给出了缺陷形成过程的图解模型，提出了减少和消除缺陷的工艺措施。

The combining ability of grain filling durationand grain filling ratein wheat were investigated by using 6×6 diallel crosses.

以6×6双列杂交的F1～F3及亲本为试材，对籽粒灌浆持续期和籽粒灌浆速率进行配合力分析。

The authors review the studies on filling and emptying layout,hydraulic characteristic,pattern of energy dissipater,key technology,and also introduce the constructive experiences and results on filling and emptying system of navigation lock in China,U.

从输水系统布置、水力特征、消能工型式、关键技术等方面对高水头船闸输水系统进行了综述；并介绍了中国、美国、前苏联等航运发达国家的船闸输水系统建设经验和研究成果

Based on introducing the grey system theory,this paper discusses on the principle of the forecast of equidimensional filling vacancies,advances the dynamic model of grey forecasting of equidimensional filling vacancies in the medium-long term load forecasting of power system,and forecasts the yearly load value of this area in the period of 1999-2009 with the model established by using the historical load data of some areas.

在介绍灰色系统理论的基础上，讨论了等维递补预测原理，提出了电力系统中长期负荷预测的灰色等维递补预测动态模型，并利用某地区的历史负荷数据建模预测出了该地区1999—2009年的年负荷值。

It adopts imported photoelectric fiber switch and precision protractorto to realize no-bottle-no-filling fucation with simple structure and achieves no-bottle-no-filling fucation with a high pass rate.

采用进口的光电光钎开关和精准的分度器来控制无瓶不灌装，结构简单，无瓶不灌装动作实现率高。

Barium agent enter the hypophragmatic gastral cavity circumferencely, multi-directions showed the verge of esophagous hiatal hernia sac were smooth and intact extremely. There were imaging of fine line between the filling defect and the wall of hiatal hernia sac. The superior border of filling defect could be described as "pointed top" in 3 cases, while "round top" in 4 cases.

钡剂沿着充盈缺损的疝囊周壁进入膈下胃腔，多方位旋转显示疝囊轮廓边缘十分光滑且完整，其内充盈缺损与疝囊壁之间存在薄而完整的钡线影。3例充盈缺损的上缘表现为&尖顶征&，4例&圆顶征&。

The production line is suitable for filling low viscosity grainless liquid, and the filling volume can be adjusted in a big scope.

本生产线适用于灌充低粘稠度的无颗粒液体，灌装容量范围可调范围较大。

The production line is suitable for filling low viscosity grainless liquid,the filling volume can be adjusted in a big scope.

本生产线适用于灌充低粘稠度的无颗粒液体，灌装容量范围可调范围较大。

The results shown that, for the typical kind of photonic crystal fibers with hexagonally arrayed circular air holes, the band gap of acoustic wave of XY mode appears only when the air holes' filling rate is greater than certain threshold value, and the upper and lower boundary values of the band gap decrease with the increasing of the air holes' filling rate.

结果表明，对于较为常见的空气孔排列为六角密排结构、空气孔形状为圆形的实芯光子晶体光纤，只有当空气孔的填充率大于一定阈值时才出现较明显的XY模态声波的带隙，并且最低与次低带隙的上下边界均随空气孔的填充率的增大而下降。

Twelve density treatments were designed, which were 225×10^4 (T1), 300×10^4 (T2), 375×10^4 (T3), 450×10^4 (T4), 525×10^4 (T5), 600×10^4 (T6), 675×10^4 (T7), 750×10^4 (T8), 825×10^4 (T9), 900×10^4 (T10), 975×10^4 (T11) and 1050×10^4 (T12) basic plants/hm^2. Grain dry matter growing process and grain filling rate could be described by Richards Model and Monodic Quadratic Equation, and the grain filling parameters could be calculated from Richards model fomula. Relation analysis, stepwise regression analysis and path analysis were made by DPS, SPSS software.

方法设计了225万(T1)、300万(T2)、375万(T3)、450万(T4)、525万(T5)、600万(T6)、675万(T7)、750万(T8)、825万(T9)、900万(T10)、975万(T11)、1050万(T12)基本苗／hm^2共12个密度处理，分别运用Richards模型、一元二次方程模拟了冬小麦籽粒干物质增长过程及籽粒灌浆速率随花后时间的变化情况，并对所建立的Richards模型进行推导得到基本的灌浆参数，通过SPSS、DPS软件对籽粒灌浆参数与千粒重进行相关、逐步回归及以及通径分析。

Serendipitous occultation is currently the only way to study the comet-size Trans-Neptunian Objects.

中文摘要外海王星天体(Trans-Neptunian Objects ，TNO)的探索和认识，是现代天文学家很感兴趣的一个课题。

There are some books on the bookshelf.

书架上有一些书。