Parts of the mechanical structure: this chapter introduced the design of manipulator and bogie phoning trailer honing rack, windlass, upper support frame, low support frame and roller etc in detail.

机械部分：本文主要详细介绍了机械手及行走机构、珩架拖动小车、珩架、卷扬机、上支架、下支架、滚轮等的设计。

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When the lemmings' food supply becomes too low to support the population, a singular migration commences.

当旅鼠的食物供应不足以维持种群时，一次特别的迁徙就开始了。

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However, when the lemmings' food supply becomes too low to support the population, a singular migration commences.

然而，当旅鼠的食物供应变得太少而无法维持种群时，一次特别的迁徙就开始了。

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Many babies with Down syndrome have low muscle tone, so they need extra support when they are held.

VOA: special.2009.09.09

It was possible that gold holdings might fall so low the government could not support the dollar.

VOA: special.2010.06.17

Yet in the south,for example, support for the protesters is low even among the poor.

VOA: special.2010.05.22

Having initially craved an early referendum to take advantage of low support for independence, some unionists think a two-year campaign will expose flaws in the Nationalist argument.

ECONOMIST: Scottish independence

This keeps interest-rate expectations too low to support the dollar, which in turn verifies the gloom.

FORBES: Malpass to Bernanke: Hike! Hike! Hike!

OPEC's market share is now too low to support its control of the oil price.

ECONOMIST: Regulating radio