They can break the brush head off and sharpen the shaft in seconds.
他们可以把牙刷头掰掉，几秒钟内把牙刷柄磨尖。
Instead, the known flow, head and efficiency, shaft power can also be obtained.
反之，已知流量、扬程和效率，也可求出轴功率。
The utility model relates to a novel shaft head seal.
本实用新型涉及一种新式轴头密封。
Aluminum alloy shaft and plastic head, shaft length could be adjustable.
铝合金杆身，头部为塑料杯。杆身可伸缩。
Aluminum alloy shaft and plastic head, shaft length could be adjustable.
铝合金杆身，头部为塑料杯。杆身可伸缩。
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