Chemical synthesis and cloning of a gene for potato spindle tuber viroid

In this paper, a type of NC lathe's main transmission agent by using a frequency modulation AC Spindle Motor and a tree speed gear box to make the spindle speeds be stepless change was present.

介绍一种以交流变频调速主轴电机驱动、串接一个3档分级变速机构，实现主轴无级变速的数控车床主运动传动系统。

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Both the tree and its fruit have purgative capabilities that are used to combat extreme indigestion. A few drops of spindle tree and everything in your stomach has to go!

树和果实都有通便的作用，曾用于对抗严重的消化不良，它的几滴汁液就会清空你的肠胃！

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The tree can be found throughout woodland areas, and is quite beautiful. However, you should never take a bite of a spindle tree's fruits, no matter how tempting.

这种美丽的树可以在树林中找到，但是不管如何诱人你都不能吃它的果实。

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The European spindle tree is a little known plant that provides lots of food for birds and insects. Some of its other uses include the creation of high quality charcoal colors for artists.

众所周知，欧洲卫矛为鸟类和昆虫提供食物，同时也为艺术家制造高质量的木炭色彩。

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Some of the other symptoms of spindle tree poisoning include nausea and diarrhea.

卫矛中毒的其他症状包括恶心和痢疾。

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Wood Properties and Uses of Silk Spindle Tree

丝棉木木材性质及用途的研究

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This is an ideal spindle tree system.

这是一种理想的纺锤形植株方式。

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The input speed evenness of folded yarn is guaranteed, and the twist irregularity of folded yarn is reduced by using knotless spindle tape and strengthening the checking and repairing of twist& winding apparatus.

通过加强加捻卷绕部位的检修、使用无接头锭带，保证了股线的输入速度均匀，降低了股线的捻度不匀率。

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Operation property and spinning quality of domestic CNG robber spindle tape and rotor spinning high speed apron belt were discussed.

探讨国产CNG橡胶节电锭带和转杯纺高速龙带的运转性能和纺纱质量。

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A new three-axis spindle stage for direct measure-ment of 2V and indicatrix orientation determination

一种直接测定2V和光率体定位的多用三轴针台

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All spinning parameters are computer controlled including draft, count, twist direction, twist level, traverse and spindle speed.

所有纺纱参数由电脑控制，包括：牵伸、数、度方向、度水平、复动程和锭子速度。

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As the core of high-speed machine tool, the performance of high-speed spindle speed directly affects the cutting speed and precision of entire machine.

高速电主轴作为高速机床的核心部件，它的性能直接影响到机床加工精度。

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Drilling axial force may decrease with the increasing of spindle speed, and the corresponding will get obviously with the increase of feed speed.

钻削轴向力随着主轴转速的增大而减小，随着进给速度的增大而相应的增大。

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High speed and high precision machinery should have not only high spindle speed and high feeding speed, but also high spindle and feeding system acceleration.

高速高精度机床不仅要有高的主轴转速和进给速度，而且还需要具有高的主轴和进给系统运动加速度。

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The influence of overhang length of cutter and spindle speed on dynamic characteristics ( include natural frequency and mode shape) are studied.

分析研究了刀具悬伸出LSFH的长度、主轴转速对LSFH-刀具配合的动力特性包括固有频率和振型的影响。

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The back infeed and spindle speed have little influence. Theoretical Study on Determination of Minimum Limit Back Engagement for Chip-breaking

背吃刀量、主轴转速对表面粗糙度的影响较小。确定切屑折断最小极限背吃刀量的理论探讨

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It also shows that the slower spindle speed and big amount of feed, the harder it can cause tool adhesion failure.

并证明切削速度越低、进给量越大，刀具的粘接破损越严重；

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Among them, the influence of spindle speed to cutting force is due to the impact of the spindle speed to processing system stability.

其中，主轴转速对切削力的影响是由于主轴转速对加工系统稳定性的影响。

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Machining Center with Mechanical Accuracy 3 μ m under the Spindle Speed 20 000r/ min

在20000r/min的高转速下机械精度为3μm的加工中心

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The results show that the vibrational response varies regularly when the spindle speed is continuously changed from low to high.

结果表明，连续改变机床主轴转速时振动响应的最低点即为不发生颤振的稳定切削点。

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