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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。

When drilling with the new water-saving technology, the surface water almost will not be consumed, the strata not be disturbed and the drill penetration rate can be enhanced greatly, showing a nice future applied in droughty and water lack area.

该节水钻探新技术在钻进过程中基本不消耗地表水，且不扰动地层，并能显著提高机械钻速，在干旱缺水地区具有广阔的应用前景。

Zi Yue flower with "fashion, romantic, minimalist" design style, Euro design concept: the penetration of international Enteromorpha process various types of fashion.

花姿悦以&时尚、浪漫、简约&的设计风格，欧陆化的设计概念：贯以国际浒的各类时尚工艺。

Hence, an equidensity principle for simulation test which is important to the spray penetration research especial in small Diesel Engine was propsed.

根据试验结果进一步提出了等密度试验原则，这对今后中小型直喷式柴油机贯穿特性研究有重要指导意义。

We have strong business penetration and have been erecting a variety of new platforms.

自 1949 年以来，摩托罗拉公司在半导体工业一直发挥着先锋作用。

Based on the practice and the research on theory of tectonic geology, the geophysical technique ,including probing into the base of the well ,is adopted to confirm the distribution of the position of the 储层,the degree of finestra,the rate of penetration, while to be used to analysis of the crack and the faultage.,which is a kind of technique used for confirming position.

在构造地质学理论研究和实践的基础上采用地球物理技术进行储层层位的分布，孔隙度、渗透率的确定以及裂缝、断层的定量、定性分析，这是一种先进的确定地址的技术。

The foliar application of KH2PO4 also influenced markedly enzyme activity and penetration of cell membrane.

叶面喷施不同浓度KH_2PO_4，对种子酶活性及细胞膜透性的影响也非常

Improved investigative methods, such as differential stripping, are being developed in order to determine follicular penetration.

改进的研究方法如差相洗提，正被发展成为确定毛囊渗透作用的方法。

The second part, by the analysis of value penetration during A.. formin~ of truth and effect of fact understanding in value evaluation, expounds their mutual influence in the understanding behavior of human being.

第二部分，通过对真理形成过程中的价值渗透以及价值评价中的事实认知影响的分析，阐述二者在人类认识活动中的相互作用。

The US 76 mm gun, if firing the APCBC M62 ammunition, could penetrate the Tiger frontally out to just over 500 m, and could be at ranges in excess of 1,000 m to achieve penetration against the upper hull superstructure.

美国76mm炮，如果发射APCBC M62彈藥，可以恰好在500米击穿虎式正面，也能够在超过1000米的距离上实现对首上上部的击穿。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。