您要查找的是不是：
- pile iron core 桩铁心
- A power choke or transformer has an iron core. 扼流器或变压器有一个铁芯。
- Its moving iron core transformer structure is most widely used. 动铁芯式变压器结构，应用最广。
- Astronomers say the planet is heavily cratered and has a large iron core. 天文学家表示该行星沉重多坑洞;中心有一个巨大的铁芯.
- The primary and secondary windings and iron core are insulated by epoxy resin. 一、二次绕组及铁芯均浇注在户外环氧树脂内，防水、耐污染。
- Primary and secondary windings and iron core are insulated by epoxy resin. 一、二次绕组和铁芯均浇注在环氧树脂内，绝缘性能优良，耐潮湿。
- The centre of the earth consists of an iron core, probably with some nickel mixed in. 地心是铁芯组成，可能还混有一些镍。
- The centre of the earth consists of an iron core,probably with some nickel mixed in. 地心是铁芯组成，可能还混有一些镍。
- For low-frequency currents(up to about 15, 000 cycles per second)an iron core, called a magnetic circuit; is placed. 对于低频率电流（约15，000周/秒以内），置有一个叫作磁路的铁心。
- Be suitable for electromotor insert shafts into the slices, impacting and installing of stator iron core and axletrees. 适用电机轴入片,定子铁芯压装,轴承压装等。
- Be suitable for electromotor iron core and commutator outer cycle precious lathing. 适用电机铁芯外园、换向器外园精度车削。
- The criminal gang always steals the iron cores of transformers. 这个犯罪团伙经常偷盗变压器的铁芯。
- I have a huge pile of letters to deal with. 我有一大堆信件要处理。
- He was able to wrap many turns of wire around an iron core without danger of circuits between the turns. 这样他便能够在铁芯上缠绕许多圈导线，而不会在线圈的匝间造成短路的危险。
- The rotating part of a dynamo,consisting essentially of copper wire wound around an iron core. 电枢电机的转子部分，主要包括绕在软铁心上的铜线
- Its weight and size are 1/3 - 1/3 less when compared with an iron core motor of same power. 与同等功率的铁芯电机相比,其重量、体积减轻1/3-1/2,是低惯量电机中性能最好的一种。
- The machinge forms eyelet specially for the riveting of inserted shank board and iron core. 本机为插中纸板与铁心钮合之专用鸡眼机。
- Some shortcomings of the traditional coatings for iron core of electric steel are expounded. 阐述了电工钢传统涂层在固定铁芯方面存在的不足之处。
- The iron core of the product is annular.The secondary winding go uniformity around the core.The clip clamps the core. 本系列零序电流互感器的铁心为环形，二次绕组均匀绕制在铁心上，用夹件夹紧铁心，夹件备有安装孔。
- Your letter got buried under a pile of papers. 你的信压在一堆文件下面了。
