track ball是什么意思

网络释义

用法例句

The characters of cell growth in the culture process with beads to beads inoculation under static conditions were investigated and the mechanisms of cells transferring from beads to beads were proposed.

研究了静态球转球接种Ｖｅｒｏ 细胞培养过程中的细胞生长特性，提出了细胞球转球的机理，通过与消化接种的比较，证明在静态球转球接种的细胞培养过程中，细胞在新球与老球表面的生长和细胞的生理状态很不平衡，因而认为不适合于大规模细胞培养过程，并对消化接种在大规模操作中的可行性进行了讨

In the microcarrier culture of Vero cells,the growth after beads to beads inoculation under dynamic condition was investigated and the mechanisms of cell transfer from beads to besds were proposed.

研究了动态球转球接种Ｖｅｒｏ 细胞培养过程中的细胞生长特性，提出了细胞球转球的机理，通过与消化接种的比较，证明在动态球转球接种的细胞培养过程中，细胞的比生长速率和增殖倍数均较低，因而认为以动态方式实现细胞球转球接种不适合于细胞的大规模培养过程。

The researchful progress in dynamical theory of Inner core Earth rotation(Ⅵ)——The transfer function for nutations and dynamical effect of inner core;

内核地球自转动力学理论的研究进展(Ⅵ)——章动转换函数和内核的动力学效应

The researchful progress of dynamical theory for elasticity s earth rotation;

弹性地球自转动力学理论的研究进展

The stress-difference among the different latitudes induced by the variety of earth rotation velocity affects the rock burst occurrence.

针对太阳、地球、月亮这些星球的活动对发生冲击地压的影响问题,采用理论分析及实例验证的方法,主要研究了由于地球自转速度的变化而引起地球上不同纬度间的应力差对发生冲击地压的影响,在一年中容易发生冲击地压的月份,太阳活动对发生矿震的影响,以及月球-太阳潮应力对发生冲击地压的影响。

Hydrocarbon accumulation is governed by the rotation of the earth.

基于系统论的思维方式,认为石油天然气的烃源是从银河系旋转孕育烃类吸积开始,逐步导致软流圈演化,形成行星地球上唯一规模最大、潜能最丰富的准烃源层;地球自转导向石油天然气的运移聚集成藏;断裂是通道也是演化过程的储集空间,阐述了断裂(带)控制地球油气分布的认识,提出“两转一断”与地球烃新的地质理论。

The close relations between the rotation of the earth and forest fires are revealed on the basis of the studies of many years variation of the earth rotation factors and their influences on the forest fires in this period on the principle of astronomy earth biology interaction.

根据天地生相互作用原理 ,针对地球自转因子的多年变化情况以及与在此期间森林火灾灾情的关系的研究 ,揭示了森林火灾和地球自转有密切的联系 ,为林火预测提供了新的思路。

When we usually discuss the projectile motion problems we usually neglect the rotation of the earth in classical mechanics.

针对经典力学中忽略地球自转来处理抛体运动的问题,考虑地球自转的影响,建立了抛体运动的动力学方程。

Measurement of eye cyclotorsion and pupil centroid shift during corneal refractive surgery;

角膜屈光手术中眼球旋转和瞳孔中心移位的测量

Research on pupil centroid shift and eye cyclotorsion during laser in situ keratomileusis;

准分子激光原位角膜磨镶术中瞳孔中心移位及眼球旋转的研究

Influencing factors for eye cyclotorsion and pupil centroid shift during LASIK;

LASIK术中眼球旋转和瞳孔中心移位的相关因素分析

Players can now curve, shank and slice the ball depending on the situation.

球员现在能根据情况扭球，转球，削球。

A knuckle ball.

（球手投出的）不旋转球

a left-arm spin bowler

投左手旋转球的投球手.

(eg in golf)strike(a ball)with a slice

（如在高尔夫球中）将（球）击成同侧旋转球.

Backspin: Reverse spin imparted by striking the ball with a downward movement of the racket.

下旋：向下挥动球拍击出的旋转球，使球回转。

a baseball pitch thrown with little speed or spin.

投手投出的不旋转球。

The earth revolves both round the sun and on its own axis.

地球又公转又自转。

The earth revolves around the sun.

地球绕太阳运转 [公转] 。

a stroke (in tennis or badminton or squash) that puts reverse spin on the ball.

（在网球或羽毛球或壁球）使球反过来旋转的击球。

A bacterium having a spherical or spheroidal shape.

球菌球形或回转扁椭球体形状的细菌

The rotational angle of a ball around its rotational axis.

转轴角-----球旋转时转轴的水平角度。

The earth completes one revolution each day.

地球每天完成一次自转。

the revolution of the earth on its axis round the sun

地球以太阳为轴的旋转.

and put so much spin on the ball,

而且将球旋转得很厉害，

The earth travels round the sun.

地球围绕太阳运转。

That the earth is turning round the sun is true.

地球围绕太阳转是真的。

universal ball float adapter

万能球形活动头转接器

The ball swerved to the left.

那球突然转向左方.