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At the same time, the electric-drive equipment is the part that is most complex, most difficult to master and most possible to be broken-down.

机车的电传动系统也是整个设备中最复杂、最难掌握、最容易出故障部分。

This is because it is not only the lifting of bronchospasm, but also so that the contraction of smooth muscle increased induced asthma attack and suppress the respiratory center, so that even more difficult to breathe, leading to respiratory failure.

这是因为它不但能解除支气管痉挛，还可使平滑肌收缩加剧，诱发哮喘的发作，且抑制呼吸中枢，使呼吸更加困难，导致呼吸衰竭。

It is sufficient to support the brunt of the financial system is difficult to say.

这是足以支持金融体系的冲击还很难说。

the market demand for the buckeye, but because the buckeye conventional breeding way is seed propagation, reproductive slower, plus the buckeye rate is low and seeds, seedlings to inactivation rate is weak, so the unearthed, reproduction rate low, difficult to meet the market demand.

市场对七叶树的需求量较大，但是由于七叶树的常规繁殖途径是播种繁殖，繁殖速度较慢，加之七叶树的结实率低且种子易失活，幼苗出土率较弱，所以，繁殖率较低，难于满足市场需求。

Without evidence, it will be difficult to determine whether failures are due to the building code, engineering design, and/or construction quality.

没有证据的情况下，很难确定垮塌是因为建筑规范、工程设计还是施工质量的原因。

Although the current international bulk commodity prices have fallen very sharply, financial crisis to reduce the external demand is also difficult to support domestic prices rose too fast.

尽管当前国际大宗商品价格大幅回落，，以减少金融危机的外部需求，也难以支持国内价格上涨过快。

Bureaucracies, red tape, stupid policies, and such can cause all kinds of challenges and it is very difficult to create smart simple solutions to these problems.

官僚机构的繁文缛节，愚蠢的政策，这种可能导致各种挑战，这是非常难以形成这些问题的智能简单的解决方案。

According to the analysis Bute Mawei companies in Europe and the United States have been difficult to see traditional Almighty developers as a listed company in Southeast Asia and the Mainland, there were developers, but no century-old store, and listed companies.

据弼马威公司的分析报告，在欧美已经很难看到传统的全能开发商作为上市公司出现，在东南亚和内地，存在全能开发商，但没有百年老店和上市公司。

Subjected to actual measure method and technical level, it is difficult to predict the distribution of sedimentary facies of underground strata by rule and line.

限于目前的测量手段和技术水平，要做好地下地层沉积相的预测是很难的。

Especially difficult to navigate at first was the Cairene metro, where choosing to ride in the wrong car could result in serious awkwardness.

尤其困难的是乘坐交通工具，首先就是在Cairene乘地铁，在那里要是选错了乘坐的车会让人异常尴尬。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。