a large container or vehicle supplying fuel for aircraft or other vehicles, or water

I start up the plane's engine and taxi over to the fuel bowser to top the tanks. 我启动飞机发动机，然后滑行到加油车加满油箱。

a petrol pump (= a device that allows you to buy fuel and put it into a vehicle)

The government has not done anything that will bring down the price at the petrol bowser for consumers. 政府没有采取任何措施为消费者降低油价。

a dog

They'll lend you a bowser to protect you. 他们会借给你一条狗来保护你。