Gerotor
内齿轮油泵
🗣️ 情景例句
Take it side again .... OK, and switch. Stretch it out.
再侧身……好 左右交替。尽量伸展。
The price of the car was so low that it made Stone suspicious of the value.
这辆车的价格如此之低，世通怀疑那车的价值。
He must, for example, perceive an egg as a simple single solid shape,
以鸟蛋为例，观赏者必须感觉到它是一个单一的实体形态，