Large - sized crawler dozers normally have a set of claws called a ripper that is installed at the machine's rear end and can crush a hard rock.

通常大型的履带挖掘机尾后部会装有爪型的排状粗齿锯，用于碾碎石块。

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Importance to rationally select parameters of hydraulic drive system is emphasized. All these presents a basis for parameter design and calculation of hydraulic drive system of dozers.

讨论液压驱动系统参数选择的重要性，为全液压推土机液压驱动系统参数设计计算提供依据。

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Risk of any type of stroke was three times higher in severe dozers than nondozers.

WSJ: Even Outdoors, Second-Hand Smoke Affects Non-Smokers

How about the tractor company that profits from selling oil companies bull dozers?

FORBES: Socially Sensitive Stupidity

Subjects included 921 nondozers, 981 moderate dozers and 186 severe dozers.

WSJ: Even Outdoors, Second-Hand Smoke Affects Non-Smokers