因其技术含量新、制造难度大，我国前些年一直依赖进口。
In past years, China has been relying on importing it since it features high technology and is quite difficult to manufacture.
磁极是汽车发电机上的关键零件，其形状复杂，尺寸精度和内在质量要求比较高，制造难度大。
Alternate pole, which has complex shape and strict limit in its size and quality, is the key part in the automobile generator, so it is difficult to produce.
多工位级进模精度要求高，结构复杂，传统的串行开发存在着制造难度大、生产周期长的缺点。
Because of the high precession and complicated construction requirements, the multi-stationed progressive die is hard to process with the traditional serial development besides a long production term.
目前，国内大跨径悬索桥钢箱梁大多为全焊结构，具有结构复杂、熔透焊缝多，制造难度大等特点。
The domestic steel box beam for long-span suspension bridge is mostly welded structure at present, which features complex structure, a great deal of penetration welds, difficult manufacture.
汽水分离再热器（MSR）是核电站常规岛中较复杂的设备，它的技术含量高、制造难度大，一般均在国外制造。
Moisture Separator Reheater (MSR) is a complicated equipment in conventional island of a nuclear power station , it is made in abroad because it contains high technology and difficult manufacturing .
制造商典型的想法是不好的产品是因为生产难度大、成本高，这是不称职的。
A product is not quality because it is hard to make and costs a lot of money, as manufacturers typically believe. This is incompetence.
其电枢制造工艺复杂、要求高、难度大，需要采用新的材料和加工技术。
The technological process to manufacture the armature of CBLDCM is complex, exigent and difficult. The new material and process technique are needed.
热壁加氢反应器是炼油工业加氢裂化装置中的关键核心设备，制造工艺复杂，技术难度大。
The hot wall hydrogen reactor which has complicated manufacture process and needs high technology is a key equipment of hydrocracking apparatus in refinery.
因此输送硫酸的泵阀通常采用高硅铸铁泵(铸造及加工难度大)、高合金不锈钢泵(20号合金)制造。
Therefore transportation of sulphuric acid valve is usually a high silicon iron pump (casting and machining difficult), high-alloy stainless steel pumps (on the 20th alloy) manufacturing.
因此输送硫酸的泵阀通常采用高硅铸铁（铸造及加工难度大）、高合金不锈钢（20号合金）制造。
Thus transport of sulfuric acid pump usually high silicon cast iron (casting and processing is very difficult), high-alloy stainless steel (alloy No. 20) to create.
系杆拱桥钢钻箱，具有“承受大吨位，适应小空间”的特点，给设计和制造增加了难度。
The steel anchor box of the tie ho arch bridge has the characteristics of carrying lug loads and fitting into a small space. This adds to the difficulties in design and production.
它解决了已有的多层连接管件存在的制造工艺复杂、加工模具难度大、成本高、吸收噪音不理想以及连接管件与管子之间密封效果不理想的问题。
Compared with available multi-layered pipe union, the present invention has simple manufacturing process, low cost, high noise absorbing performance and high sealing effect.
本机构结构简单，设计合理。解决了现有机构复杂、设计难度大、制造成本高的缺点。
With a simple structure and a reasonable design, the mechanism solves the problems that the present mechanism is structurally complicated, hard to design with high manufacturing cost.
本机构结构简单，设计合理。解决了现有机构复杂、设计难度大、制造成本高的缺点。
With a simple structure and a reasonable design, the mechanism solves the problems that the present mechanism is structurally complicated, hard to design with high manufacturing cost.
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