Then she stood motionless, bucket in hand, the open door before her.
她提着桶，对着那扇敞开着的大门，立着不动。
The place downstream of bucket in an open channel is easily subject to cavitation damages.
明流反弧段是容易发生空蚀的部位。
The place downstream of bucket in an open channel is easily subject to cavitation damages.
明流反弧段是容易发生空蚀的部位。
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