Operating engineers: Playing with giant toys like bulldozers, front-end loaders, backhoes, scrapers, motor graders, shovels, derricks, large pumps, and air compressors can be fun.

施工工程师：摆弄那些大型玩具可能是很有趣的，比如推土机、前载车、反向铲、刮运机、平地机、铲车、起重机、大型水泵以及空气压缩机。

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Heavy haulers are especially good testbeds because they're large enough to carry the pumps and tanks the system needs to run.

重型货车是特别不错的实验台，因为这些车辆能携带系统需要运行的汽油加油泵和油箱。

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Two sets of imported water pumps, large capacity water tanks and sprinkler pipes raise operational reliability.

采用进口双水泵、两个大容量水箱，两套管路提高作业可靠性。

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Using large blowers, Disney pumps scent into the area.

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The subsea power grid encompass pumps and compressors and large variable speed drives to transport the oil and gas from the wellhead to a processing facility.

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The drywell is a large steel pressure vessel that looks like a giant upside-down pear and holds the reactor and primary pumps, and the wetwell is a large toroidal vessel that looks like a donut.

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