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When the blood pressure is too low there is inadequate blood flow to the brain and other vital organs, light-headedness or fainting may occur.

当血压太低，没有足够的血液流向脑部及其他重要器官，轻头脑或昏厥，可能会发生。

Orthostatic light-headedness, syncope or shoulder pain may occur.

异位妊娠可以出现立位性头晕、昏厥或肩膀痛等。

Slips of the tongue, headaches, backache and other pains, dizziness, light-headedness, numbness, muscle twitches, jerks, cramps, and tremors all occur in totally healthy persons.

像口误、头痛、背痛和其他疼痛、头晕、肌肉抽搐或抽动、痉挛性震颤等，都是完全健康者也可能发生的。

But this is not likely to occur.

但这不太可能发生。

I must occur one day to wait for you in that seashore cold appearance limpid dual student's I.

我想终有一天我会在那海边守侯你冷的模样清澈的双眸。

Another problem can occur rarely if backflow of process gas is permitted into the secondary air feed line.

如果工艺气体回流入二段空气管线，能发生另外的很少发生的问题。

Molybdenum deposits generally occur in nearly E-W direction along the tectonic lineament and are mostly concentrated in a zone stretching from Jinduicheng area of Shaanxi Province in the west to Nannihu-Sandaozhuang-Shangganggou area of Luanchuan and Leimenggou of Songxian in western Hena...

研究结果表明：除黄龙铺钼矿床形成于(221.5±0.3)Ma外，东秦岭地区钼矿床的大规模成矿主要出现在(144.8±2.1)~(132.4±2.0)Ma时限之间，对应的地球动力学背景为华北克拉通与扬子克拉通的碰撞造山后陆内造山局部伸展过程、中国东部地球动力学体制大转换晚期岩石圈拆沉及伸展时期。

A transmission angle of 0 degree may occur at a specific position, on which the output link will not move motion variable for a given linkage geometry is a measure of the movability of the linkage in a particular position.

零度传动角可能发生在某些特殊位置上。

At the same time, overseas listed closed-end bond funds, which are premium transaction, if the future will be based on market changes is expected to occur among premium and discount is the case.

同时，海外上市的封闭式债券基金，这是溢价交易，如果未来将根据市场变化，预计将发生在保费和折扣是这样。

The average greatest grain-sizes of lithic fragments and pumice fragments in pyroclastic flow deposits decrease with increasing distance from the crater, indicating that gravity sorting and mechanical wearing did occur during the transportation of the pyroclastic flow.

火山碎屑流堆积中的岩屑和浮岩的平均最大粒度随着离开火山口距离的加大而减小，反映火山碎屑流搬运过程中存在重力分选和机械磨损作用。

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。