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negative buoyancy effect 负浮力效应
In fact, tunnel fire is unsteady and variational because of throttling effect and buoyancy effect. 实际上，在节流效应和浮力效应作用下，隧道火灾是动态变化的。
Immersing the drill pipe in fluid produces a buoyancy effect, reducing its weight and putting less stress on the drilling mechanism. 如果将钻杆浸入钻井液,就会产生浮力作用,降低钻杆重量,并会减小对钻探机械装置的压力。
Due to buoyancy effect,the cooling water goes up to the surface of seawater after it is drained into the huge tidal bay. 温排水排入海湾后,温差所产生的浮力效应,温排水趋于海水上层运移,随潮流的运动在呈现涨落分布。
The thermal buoyancy effect of the cooling water is clear in deeper water areas because the beat quantity of the cooling water is diffused at certain depth below water surface. 摘要当水深较大时，温排水热上浮效应明显，温排水的热量仅在水体表层的一定深度内扩散。
LES OF BUOYANCY EFFECT ON JET DIFFUSION FLAMES 浮力对矩形射流扩散火焰影响的大涡模拟
Abstract : This paper discusses sediment-induced buoyancy effects on the stability of hyper-concentrated siltladen flows, as encountered in the Yellow River. 摘要：本文探讨了黄河中含沙量导致的浮力对高含沙河流稳定性的影响。
Wang Yue,Lei Yu,Zhang Peiyuan,et al.A study of buoyancy effects on premixed V-flames by OH-PLIF[J].Journal of Engineering Thermo-physics ,2001,22 (3):382-385 (in Chinese). [3]王岳;雷宇;张培元;等.;用OH-PLIF研究浮力对预混V形火焰的作用[J]
THE INFLUENCES OF METASTABLE OLIVINE ON THE NEGATIVE BUOYANCY OF SUBDUCTION ZONES AND THEIR GEODYNAMIC SIGNIFICANCE 亚稳态橄榄石对俯冲带负浮力的影响及其动力学意义
The answer to my request was in the negative. 对我的请求的答复是否定的。
Thermal buoyancy effect in two-dimensional cooling water mathematical models 平面二维温排水数学模型中的热上浮效应
His answer to my request was a negative. 我的请求遭到了他的拒绝。
The tests for hepatitis were negative. 肝炎检查结果是阴性。
Punishment had very little effect on him. 惩罚对他没有什么效果。
Their criticism was not negative. 他们的批评并不是负面的。
Do a blow-up of this corner of the negative. (对某事的)详尽的报道。
It's certain that every effect must have a cause. 无疑，每个结果必定有其原因。
That measure will be carried into effect very soon. 这项措施将在最近付诸实施。
My plan has not been carried out with effect. 我的计划未被有效地执行。
The room shows off her paintings to good effect. 这个房间把她绘画的优点充分显示出来。