jackhammer是什么意思

网络释义

用法例句

Research on the development of light-duty mechanized troop equips;

轻型机械化部队装备发展研究

was changed to the light-duty six-ton inclined shaft skip with steel-plastic structure.

鹤壁煤电股份有限公司九矿主斜井箕斗改造为钢塑结构轻型6 t斜井箕斗后,减轻箕斗自重,提高一次有效载重量,方案实施后达到了预期目的。

In order to rigidly limit the energy consumption and emissions of vehicles, our government puts out GB/T19753-2005, Testing methods of energy consumption of light-duty hybrid-energy vehicles;GB/T19754-2005 Testing methods of energy consumption of heavy-duty.

随着我国经济快速发展,节能和环保是当今研究电动车的主题,为了严格限制混合动力车辆能量消耗量和排放污染物,我国先后颁布了GB/T19753-2005《轻型混合动力电动汽车能量消耗量试验方法》;GB/T19754-2005《重型混合动力电动汽车能量消耗量试验方法》;GB/T19755-2005《轻型混合动力电动汽车污染物排放测量方法》。

Research on light single hydraulic support with water medium;

矿用水介质轻型单体液压支柱的研制

Study on the Chinese Light No-till Seeders;

我国轻型免耕播种机研究

This paper expounds the design of light cantilever rhombus hanging basket.

阐述了轻型菱形挂篮的设计,通过对挂篮组件的检算降低挂篮重量,达到节约钢材,满足工况,降低施工难度的要求。

AKD was selected as the sizing agent according to the structural characteristics of light offset paper.

根据轻型纸的结构特点,选择了烷基烯酮二聚物(AKD)作为施胶剂,讨论了施胶助剂、填料、助留体系和pH等多种因素对AKD施胶效果的影响,通过实验及分析最终确定轻型纸中AKD的最佳用量为0。

Research progress in the light-type grid materials of lead-acid battery;

铅酸蓄电池轻型板栅材料的研究进展

This article mainly studied on the technical conditions of Pb-Sn alloy deposited on aluminum, the foundry method of aluminum alloy light-type grid and the possibility of aluminum alloy light-type grid for valve-regulated lead-acid batteries.

其目的是在于开发出一种铝基轻型板栅,用于铅酸蓄电池中以减轻电池的质量,提高电池的质量比能量。