The manufacturing process for P/M low pressure oil pump gear, conditions of stand testing and technological and economic results have been introduced.

介绍了粉末冶金低压油泵齿轮的制造工艺、台架试验情况及应用的技术、经济效果。

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Fuel pump (unloading pump, high viscosity pump, asphalt pump) gear wear and tear parts mainly is the tooth meshing, involute face and gear ends plane.

燃油泵(卸油泵，高粘度泵，沥青泵)齿轮的磨损部位主要是齿的啮合、渐开线工作面和齿轮两端平面。

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Positive displacement pump including reciprocating pump, gear pump and screw pump, centrifugal pumps and axial flow pump belong to pump power.

容积式泵包括往复泵、螺杆泵和齿轮泵等，离心泵和轴流泵等则属于动力式泵。

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They were also required to carry all their equipment for the duration of the ultra-marathon -- from food and sleeping gear to an anti-venom pump and glow sticks -- as they battled with weariness and dehydration whilst snaking their way past rolling dunes, steep-sided uplands, dried-up lakes and abandoned settlements in the hostile heat.

CNN: Winners survive 'toughest race on Earth'

In order to pump up short-term profits, manufacturers of communications gear loaned money to cash-strapped Internet startups so they could buy switches and routers.

FORBES: Japan Throws A Dime To American Debt Junkies

Most of these broadcast-partners lack the know-how or capital to pump their own signals over the Internet, so they're happy to have JumpTV install the gear and give them access to a homesick audience hungry for news and entertainment in their native languages.

FORBES: Internet Television Brings Immigrants Home