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1·The bull dozers work to flatten the garbage.

推土机将垃圾压平。

2·Dozers, rebuild our defenses!

推土机，重建我们的防御！

3·Dozers, start repairing our buildings!

推土机，快点修复我们的建筑。

4·MORE DOZERS and TRACTORS advance nearby, crushing the forest before them.

附近更多的推土机和拖拉机开始向前推进，在他们面前大肆破坏森林。

5·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。

6·The tangled remnants of an orange grove I drove past every day, tipped over and torn by military bull-dozers, has disappeared, razed for firewood.

过去我每天开车路过的一片幸存的柑橘园，已经被军用推土机推倒毁坏，成为了一堆木柴。

7·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。