mass n. 弥撒;弥撒的仪式[祷告、音乐];弥撒曲。 a high [solemn] Mass (有烧香、奏乐等的)大弥撒。 a low [private] Mass (无烧香、奏乐的)小弥撒。 by the Mass 一定,的确。 say [read] Mass 作弥撒,念经。 n. 1.块,堆,团。 2.群众,集团;〔the masses〕群众;民众。 3.大量;大宗;众多;〔the mass〕大部分,大半;主体;总体。 4.【物理学】质量。 5.【军事】集团纵队,密集队形。 6.【矿物】体。 a mass of earth 一大块泥土。 a mass of letters 一大堆信件。 The masses have boundless creative power. 人民群众有无限的创造力。 a mass of manoeuvre 实施机动集团。 proper mass 静质量。 the masses 群众,大众。 be mass of 一团…,全身…,遍体…(He is a mass of bruises. 他遍体鳞伤)。 from the masses, to the masses 从群众中来,到群众中去。 in the mass 整个儿地;总体上,合计。 the (great) mass of... …的大部分。 to be at one with the masses 同群众打成一片。 vt. 使成一团;集中(力量等);【军事】使密集。 vi. 集中,聚集。 massed body 【军事】密集部队。 massed formation 【军事】密集队形。 mass action 【物理学】质量作用;浓度作用。
Vibration of uniform and nonuniform rods connected to a concentrated mass 系有集中质量的均匀与非均匀弹性杆的振动问题
Rapid motions of stars and gas around the galaxy ' s center betray the presence of a concentrated mass equal to that of 2 . 6 million suns 恒星与气体迅速绕著星系的中心移动,透露了一个相当于聚集260万颗太阳质量的天体行踪。
According to two - dimension flow continuity , momentum equations , suspended sand diffusion equations and two - phase flow bed sand motion equations , hydraulic - dynamics sediment accumulation mathematical model between two impounding dams was set up by adopting the methods of weighting and concentrating masses 根据二维水流连续、运动方程、悬沙扩散方程和两相流底沙运动方程,采用加权集中质量剖分方法,建立了蓄水两坝间水动力、泥沙淤积数学模型。
The compute model of shafts of the machines is built by adopting concentrated mass method . taking into account the different support conditions of the shafts that workshop is considered as rigidity or elasticity ; the natural characteristic and unbalanced response of the shafts are computed by integrating with high stable riccati transfer matrix method 采用集总质量法对机组轴系建立了计算模型,并结合稳定性良好的riccati传递矩阵法,分别考虑机组轴系的支撑基础(厂房)为刚性、弹性两种情况,计算了机组轴系的自振特性、轴系的不平衡响应。