buoyancy 是什么意思

	n. 1.浮力；浮性。 2.活泼，轻快；开朗。 3.【商业】涨风，上涨行情；(国家岁入的)增长趋势。短语和例子 net [gross, reserve] buoyance 净[总，后备]浮力。 a buoyance gauge 浮力计。 the centre of buoyance 【物理学】浮力中心，浮心。

	irrepressible liveliness and good spirit; "I admired his buoyancy and persistent good humor" 同义词：irrepressibility,
	the tendency to float in water or other liquid
	the property of something weightless and insubstantial 同义词：airiness,
	cheerfulness that bubbles to the surface 同义词：perkiness,

	1.	There was a buoyancy in their atmosphere . 他们的生活环境里有一种轻松愉快的感觉。
	2.	Buoyancy decides whether a solid object floats or sinks . 浮力决定固体物体的沉浮。
	3.	His personal buoyancy and vigour were a tonic . 他本人非常乐观，精力也很充沛，令人感到鼓舞。
	4.	I take up my task with buoyancy and hope . 当我挑起这个担子的时候，我是心情愉快、满怀希望的。
	5.	Then she had been pale and sad but there had been a buoyancy about her . 那时候她虽然也很苍白，很憔悴，但是还带着一种轻快的态度。
	6.	The primary forces causing migration of hydrocarbons are buoyancy and capillarity . 引起碳氢化合物运移的主要作用力是浮托力和毛细力。
	7.	In addition to the wetting force, any significant immersion of the fiber in the liquid will induce a buoyancy force . 在润湿力之外，纤维实际浸渍在液体中时，还要产生一种浮力。
	8.	They dispersed about the room, reminding me, by the lightness and buoyancy of their movements, of a flock of white plumy birds . 她们在屋子里散开，动作轻盈活泼，使我联想起一群羽毛雪白的鸟儿。
	9.	Test method for density of glass by buoyancy 用浮力法测定玻璃密度的试验方法
	10.	Analysis of research method on submarine reserve buoyancy 潜艇储备浮力论证研究方法分析

buoyancy是什么意思