In addition, several tens of thousands of seabirds are reckoned to be killed every year by an entangling mass of flotsam-fishing gear, grocery bags and the like.
另外，每年约摸有一万多的鸟被水上残骸缠死——诸如一些捕鱼装置，食品袋。
On the basis of exploration and demonstration, SBSD bulk setter and mass flowmeter was combined to replace the oval gear setters.
在考察、论证的基础上，用SBSD批量给定器和质量流量计配套使用来代替椭圆齿轮设定器。
The model is used to understand a series of formulae, for example, mean single tooth stiffness, gear pair mesh synthesizing stiffness, effective mass, nature frequency and critical rotating speed.
根据这一振动模型，推导了齿轮副的平均单齿刚度、单对轮齿啮合综合刚度、有效质量、固有频率与临界转速等一系列计算公式。
The main advantage of powder metallurgy sintered gear is high precision, tolerance, low noise, good wear resistance, low cost, suitable for mass production.
粉末冶金烧结齿轮的主要优点是精度高，公差小、噪音低、耐磨性好、价格低廉，适合于大量生产。
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。
A three freedom degrees mathematical model of a pair of involute spur gear transmission system is built using the lumped mass method, based on gear meshing theory and vibration impact theory.
本文基于齿轮啮合原理及振动冲击理论，采用集中质量法建立了由一对渐开线直齿圆柱齿轮组成的传动系统三自由度数学模型。
And then, availability of some cheap spare parts from a mass-produced auto engine, plus doing away with an expensive gear transmission makes a lot of sense for LSAs.
一些零备件是与大量生产的汽车发动机通用的，此外，除掉减速装置对于LSA而言是很有意义的。
And then, availability of some cheap spare parts from a mass-produced auto engine, plus doing away with an expensive gear transmission makes a lot of sense for LSAs.
一些零备件是与大量生产的汽车发动机通用的，此外，除掉减速装置对于LSA而言是很有意义的。
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