主要原因

But the recognition of the single object is still far from perfect. The main reason is that it does not accord with the people's apperception rule.

但对单个对象的识别还存在一些不足，其主要原因是不符合人类认知的规律。

Analysis suggests that errors are mainly caused by approximate computation and the value of contacted resistance adopted.

误差产生的主要原因是计算过程中的近似和短路片接触电阻的取值，其中短路片接触电阻是一个重要因素，在设计腔体时应引起足够的重视。

The main causes of non-point source pollution are agrochemicals and waste from livestock and poultry and aquiculture.

农用化学物质和畜禽养殖、水产养殖产生的各类废弃物是造成农业非点源污染的主要原因。

In many Asia cultures chewing areca is known to be a strong risk factor for developing oral cancer.

亚洲国家具嚼食槟榔的习惯，所以被认为是导致口腔癌得最主要原因。

The statistics show that most casing failures occur in argillaceous rock salt areas.

套管损坏是国内外油田普遍存在的问题，通过对江汉油田王广地区 30 0多口套管损坏井的资料进行了统计分析，得出套管损坏绝大多数发生在泥盐岩地层，套管设计载荷偏低，高压注水是加剧套管损坏以及射孔是射孔段套管损坏的主要原因，并针对泥盐岩的特点分析了套管损坏的机理。

The results show that the major reason for the land degradation is constant aridity such as shortage of rain, excessive use of land, and shortage of protection measures in dry seasons.

结果表明，土地退化的主要原因是近年持续干旱少雨，土地利用的强度过大，以及在干旱季节里没有适当的防护措施等。

The high valence and metallic Mo species were all unfavourable to methane aromatization.

催化剂上的积炭是Mo/HZSM-5催化剂失活的主要原因。

There were three parts of reasons of patient arrear as well as low income, malicious arrear and hospitalill manag ement.

通过调查发现欠费的主要原因是患者经济困难；其次是患者恶意欠费和医院管理不善所致。

Serious ventricular arrhythmia is the main cause of SCD after 8 days to 8 years of AMI.

严重室性心律失常是AMI患者发病第8天至8年内发生SCD的最主要原因。

OBJECTIVE: Osteoarthritis is the most common form of arthritic disease, and it is a major cause of disability and impaired quality of life in the elderly.

目的：骨关节炎是最常见的关节炎疾病，它是老年人残疾和生活质量下降的一个主要原因。

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。