If a gyro is used to measure the rate of rotation around the aircraft roll axis, it will measure a non-zero value as long as the aircraft is rolling, but measure zero if the roll stops.
使用陀螺仪测量飞机机体轴向的旋转角速率时，如果飞机在旋转，测得的值为非零值，飞机不旋转时，测量的值为零。
The twisting had previously been blamed for a 60-year cycle in day length, but the rate of rotation found in this study suggests it is not the culprit, says Jon Mound at the University of Leeds, UK.
这种震动以前被诟病为60年周期性日长变化的原因，但该研究发现的自转速度表明，它并不是罪魁祸首，英国利兹大学的乔恩芒德说。
And so we can use the spin rate, the rotation rate of a star, as a clock to measure its age.
因此，我们可以用星星的自转速度及速率作为衡量它们年龄的计时器。
The researchers calculated how this would affect the rotation rate of the whole planet, which would compensate to conserve angular momentum.
研究人员计算出这会怎样影响整个地球自转速度，这有助于保持角动量守恒。
Quasars are so far away that they constitute the best frame of reference for measuring Earth's rotation rate.
到目前为止，类星体是测量地球自转最好的参照系。
Since Earth’s rotation rate varies, so would the value of one second when it’s defined as a fraction of the time it takes for one spin of the Earth on its axis.
由于地球自转速率发生偏离，因此当把地球绕中轴旋转一圈作为一个单位时，（这种偏离）就相当于一秒钟时间。
It was a bit of a surprise, given that most solar observations show a pattern of about 28 days - the rotation rate of the surface of the sun.
这令人感到小小的惊讶，因为大多数太阳观测显示出一个以28天为周期的模式——这正是太阳表面的旋转周期。
But the effect ripples outward, changing the core's rate of rotation layer by layer.
但这种影响向外扩散，逐层改变地核的自转速度。
That went off without a hitch, increasing the craft's rotation rate from 19.16 revolutions a minute to its original value of 19.76.
这还算顺利，并且提高了飞船的自转速率，从现在的一分钟旋转19.16增加到了原来的19.76。
Changing the rate of cylinder rotation changes the speed selected.
改变圆筒旋转速率就改变被筛选的速率。
Further analyses show the variation of earth rotation rate and sunspot cycle length have important role on the climate abrupt change in the Qinghai-Xizang Plateau.
进一步分析表明，地球自转速度和太阳黑子周期长度的变化对高原及北半球本世纪气候的突变和阶段性变化起着重要的作用。
From 1820, especially in twentieth century in Xinjiang and its adjacency, strong earthquake activities are evidently related to the rate changes of the earth's rotation.
自1820年，尤其是20世纪以来，新疆及其邻区的强震活动与地球自转相对速率变化有明显的关系。
If the weight loss rate of the balancing machine is relatively high, the balance can be done with less rotation times.
如果平衡机的减重率比较高，就可以用较少的转动次数完成平衡，干活快。
By the principle of reversal process, the formula of material removal rate (MRR) in wafer rotation grinding process is deduced. The relationship between MRR and the grinding parameters is given.
在反转法的原理上，建立了硅片自旋转磨削材料去除率的理论模型，推导了材料去除率公式，分析了磨削工艺参数与材料去除率的关系。
The deciding factors for whether a core collapse produces a GRB appear to be the mass and rotation rate of the progenitor star at the time of its death.
核心坍塌是否能产生GRB的关键因素，似乎在于原来恒星临终时的质量与转动速率。
The above argument is strongly reinforced by the observed rotation rate of stars.
观点已为观测到的恒星自转速率有力地证实。
Fastened by cement, the agitation effection can be controlled by adjustment the rotation rate of agitation axis.
水泥土的加固，可用调节搅拌轴回转速度来控制搅拌效果。
The rotation of the Earth includes precession, nutation, variations of the rotation rate and polar motion.
地球自转运动包括岁差和章动，极移和日长的变化。
Maximum rate of change of left knee, is a proactive force to bring the body to throw the direction of lower limb rotation.
左膝关节速度变化最大，是积极主动用力来带动身体下肢向投掷方向转动。
After the enact of mandatory rotation rule, the compliance rate increased from about 50% in 2003 annual audit up to about 80% in 2004 annual audit.
强制轮换政策施行后，各证券特许会计师事务所对该政策的遵循程度从2003年审中的50%左右提高到了2004年审中的80%左右。
By researching the rotation rate of the earth, the escape of hydrogen and the landscape of the earth in the geological period, the paper supports the Expansion Theory further.
本文通过对地史时期中地球自转速率、氢的外逸以及地表景观的研究，进一步支持了地球膨胀说。
The paper presents the way of testing the performance parameters, such as pressure, torque moment, rotation rate and air displacement in dynamic state by microcomputer.
本文介绍利用微机对压缩机性能多数压力、转矩、转速、排气量等进行实际动态测量的方法。
The variation principles of the throw distance, flow rate and rotation speed of variable-rate sprinklers for precision irrigation on square area were given.
通过理论分析，给出方形喷洒域变量施水精确灌溉喷头的射程、流量和转速应服从的变化规律和计算公式。
In this article, a dewar for this superconducting magnet system is mainly described and experimental results about boil-off rate of the LHe under the condition of rotation and vibration is presented.
本文将主要描述该系统的杜瓦部分，并且给出在旋转和振动条件下的液氦挥发实验结果。
The constant of dissolution rate was proportional to the square root of the disc rotation speed.
溶解速率常数是与圆盘转速的平方根成正比。
The flow rate, electromechanical rotation rate and split ratio are the main operational parameters which can affect the separation characteristics of the compound hydrocyclone.
流量、电动机转速及分流比是影响复合式水力旋流器分离特性的主要操作参数。
If predicted collision courses are replaced with equivalent collis'on courses, this method only needs to measure the rotation rate of the Line-of-Sight, therefore, the measured parameters are reduced.
用等价预测碰撞线代替预测碰撞线，只需要探测视线的角速度，使需要探测的参数减少。文中还提出了外扰动常驻条件下，渐近稳定系统的设计方法。
The operating noises of the gear pump are mainly from the perturbations of mass flow rate and the pressure, which result in the error of gear teeth geometry contact during the rotation.
齿轮泵中轮齿啮合几何学上的原因所造成的流量脉动及其相应的压力脉动是产生噪声的主要原因之一。
The operating noises of the gear pump are mainly from the perturbations of mass flow rate and the pressure, which result in the error of gear teeth geometry contact during the rotation.
齿轮泵中轮齿啮合几何学上的原因所造成的流量脉动及其相应的压力脉动是产生噪声的主要原因之一。
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