油柱

Prediction of sucker rod string dynamic characteristics and computer simulation research for rod pumping system［D］.

李冬平。有杆抽油系统杆柱动特性的预测与计算机仿真［D］。

Take the beam pumping unit and sucker rod as a research object.

本论文以游梁式抽油机和井下抽油杆柱为研究对象。

Degradation dynamics and final residues of abamectin in cauliflowers and soils were estimated by HPLC with pre-column fluorescent derivatization.

采用柱前衍生高效液相色谱法测定1.8%阿维菌素乳油在西兰花和土壤中的残留降解动态和最终残留量。

It was introduced in the paper that the static pressure supporting of damping tube mode was adopted in the design of the friction surface between slipper and stator of radial plunger pump, and were the static and dynamic condition performance of oil bound film.

针对这一问题，本文介绍了在径向柱塞泵滑靴定子摩擦副中采用阻尼管型静压支承的方法，并对静压支撑方式油膜静动态性能进行深入的研

Under the condition of constant temperature gradient of extraction fractionating column of said separation apparatus a linear pressure boosting mode is used, so that the petroleum heavy oil, in particular petroleum residual oil can be cut into ten-odd or more narrow distillations according to the molecular weights.

在分离装置萃取分馏柱恒定温度梯度下，采用线性升压方式，可以将石油重质油，特别是石油渣油大致按分子量的大小切割成十几个或甚至更多个窄馏分。具有分离效果好，过程简单，靠近生产实际的特点；对生产实际有指导作用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。