During oil recovery by rod pump, owing to the elastic stretching and shrinking of the tubing string, the stroke loss of the subsurface pump reaches 10%.

在有杆泵抽油过程中，因油管弹性伸缩，抽油泵冲程损失达10%以上。

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Other major causes were stroke, loss of use of arms or legs,arthritis, depression,eyesight problems and gastrointestinal problems.

VOA: special.2009.12.28

A stroke is a loss of blood flow in the brain.

VOA: special.2009.09.22

In the other studies, there was no evidence of adverse effects on kidney and liver function, no reports of light-headedness or loss of consciousness, no evidence of fluid or electrolyte loss that might contribute to heat stroke.

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Signs of a stroke include dizziness, sudden weakness or numbness, loss of speech or trouble talking, severe headaches and a reduction or loss of vision.

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Princess Margaret is said to be experiencing a "severe loss" of appetite, following her recovery from a suspected second stroke just before Christmas.

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