long-cycle production 长周期生产
Due to a little quantity, electrical discharge machining (Micro-EDM) is usually developed in single production, leading to long production cycle, repetitive design and high cost.
微细电火花机床的需求少，通常是根据用户具体需要进行单机生产，机床研制周期长、设计重复、成本高。
Due to low quantity demanded, the machine of Electrochemical Machining(ECM) is usually developed in single production, leading to long production cycle, repetitive design and high cost.
电解加工机床通常是根据用户具体需求单机生产，机床研制周期长、设计重复、成本高。
Its production cycle is long for its complicated technology.
它的生产周期长，是其复杂的技术。
应用推荐