缺点主要是设备费用高，管道易被泥沙、盐分结晶或藻类植物堵塞。
The disadvantages are mainly high equipment costs and plugging of the lines by sediment, salt encrustation, or algae.
这样，每一个人的活动折扣和所有包括保险和主要设备的总费用。
With that, each individual activity is discounted and all include insurance and major equipment in the total cost.
预防性维修属于一种主动维修，其主要目的是延长设备寿命、延长设备无故障时间、降低设备全寿命费用。
As a kind of initiative maintenance, preventive maintenance mainly aims at prolonging service life of medical equipment, extending their fault-free time and lowering the whole life expense.
设备维修计划可靠性最大模型的约束条件主要为最大维修费用、最小可用度以及运行总时间；
Optimal maintenance scheduling of components, traction substations and catenaries is formulated for minimum cost, maximum reliability and both.
该设备制作精密，成本低，维修费用便宜，是一款您理想的选择材料，主要应用于机械设备和机械零配件的安装等应用领域。
It features accuracy fabrication, low cost, inexpensive maintenance rate, and is your best choice. It mainly is used for machine equipments and parts installations applications.
形成这种局面的主要原因是生产用数控机床价格昂贵，操作使用和维修费用高，难以用作教学培训设备。
There are few practice and operation training in NC course because of the high cost of the NC machine and the operation and the maintenance.
治疗数的增加是主要的成长要素，不过，由于欧洲的医疗制度上继续费用的规定条件，引进创新性高额的设备受限制，预计整体收益的可能性多少受到抑制。
Continued cost constraints in the European health care system will limit the adoption of innovative and premium-priced devices, somewhat constraining overall revenue potential.
治疗数的增加是主要的成长要素，不过，由于欧洲的医疗制度上继续费用的规定条件，引进创新性高额的设备受限制，预计整体收益的可能性多少受到抑制。
Continued cost constraints in the European health care system will limit the adoption of innovative and premium-priced devices, somewhat constraining overall revenue potential.
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