There iss strong vibration in the draft tube of a Francis turbine or axial flow fixed blade propeller hydraulic turbine when the turbine is running on part loading.

混流和轴流定浆式水轮机在部分负荷下运行时，尾水管中常出现较为强烈的振动。

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Rotor blade connection according to claim 1 wherein each intermediate layer of the individual dampers is fixed to the support beam structure by a single fastening point.

转子叶片方面，根据权利要求1，其中每一个中间层的个别阻尼器是固定的支持梁结构，由一个单一的紧固点。

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The high fixed costs of foundations, erection and connection trigger the design and installation of multi megawatt turbines with blade lengths beyond 60 m.

由于其基建、吊装和并网所需的固定成本居高不下，因此促使人们设计和安装叶片长度超过60米的多兆瓦发电机。

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Under the plan, knives with blades that are 2.36 inches or shorter and less than a half-inch wide will be allowed in airline cabins so long as the blade is not fixed or does not lock into place.

CNN: U.S. to keep restriction on small knives on planes for now

Under the new rules, which go into effect April 25, knives with blades that are 2.36 inches (6 centimeters) or shorter and less than a half-inch wide will be allowed in airline cabins so long as the blade is not fixed or does not lock into place.

CNN: TSA chief faces critics, says new knife policy will stand

In their simplest form, a piece of wood is spun around a fixed axis, and pieces of the material are chipped off with a blade.

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