This article reports the design of Z 4 Push Plate Ventricular Assist Device and the test of its mean flow velocity patterns.

报告了Z4型推板式左心辅助血泵的结构以及进行流场试验的方法。

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The invention relates to a grain harrow, comprising a harrow handle (1), a torsion spring (5), a push plate (6) and a harrow pin (7);

本发明是一种谷耙，包含有耙柄（1）、扭簧（5）、推板（6）和耙钉（7）；

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The long box assembly comprises a long box body, channel steel, a lifter, a cam mechanism, a pull and push plate, a supporting rod, etc.

长箱总成包括长箱体、槽钢、升降机、凸轮机构、推拉板及支棒等。

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Mr Putin had plenty on his plate already: his government is trying to push a radical income-tax reform through parliament, decide on an economic policy and restore central authority over Russia's 89 regions and republics.

ECONOMIST: Putin versus the oligarchs?