To provide a floor vibration-proofing device and a soundproof double floor having the same in which soundproof performance is improved particularly in a frequency band (63-500 Hz) being at issue in a floor impulsive-sound countermeasure and withstand load to a heavy article such as a shelf, a piano or the like and walking feeling are kept excellently.例文帳に追加

床衝撃音対策で問題となる周波数領域（６３〜５００Ｈｚ）で特に防音性能が高く、棚やピアノ等の重量物に対する耐荷重性や歩行感を良好に保った床防振装置及び床防振装置を備えた防音二重床を提供する。 - 特許庁

To reduce, in a horizontal shaft pump configured so that the layout of impellers has bilateral symmetry, and radial load is supported by a hydrostatic bearing (double suction horizontal shaft pump or self-balance multistage horizontal shaft pump), thrust-directional vibration of a main spindle which results from a dynamic thrust load acting on the main spindle in a small flow rate area including the vicinity of a cut-off point.例文帳に追加

羽根車の配置が左右対称性を有し、主軸のラジアル荷重を支持する静圧軸受を備える横軸ポンプ（両吸込横軸ポンプやセルフバランス型の多段横軸ポンプ）において、締切点付近を含む小流量領域で主軸に作用する動的スラスト荷重に起因する主軸のスラスト方向の振動を抑制する。 - 特許庁