It has simple structure, good airtight performance with high vacuum degree, no vortex loss, low cost on production, and no need maintenance.
本发明特点在于结构简单，气密性好，真空度高，无涡流损耗，制作成本低廉，而且不需对其进行专门维护。
There's also no need to perform any regular maintenance.
没有必要执行任何日常的维护。
No longer will you have to fiddle with the complex test scripts that need high maintenance, most often using only semi-automated test tools.
您不再需要在维护复杂的测试脚本上面浪费时间，而是能够在大多数情况下使用半自动的测试工具来帮助您完成相应的操作。
For example, almost all legacy computer systems need some form of design investigation, if for no other reason than to train new developers in the maintenance and extension of the system.
例如，如果是仅仅出于就系统的维护和扩展培训新开发人员，则几乎所有的遗留计算机系统都需要某种形式的设计研究。
After moving to a component approach, Blinco Systems found that its customers were no longer spending money on features they didn't need, and that they were reducing maintenance costs, as well.
在转移到组件方法之后，Blinco Systems发现它的顾客不再将钱花在他们不需要的特性上，而且他们还减少了维护费用。
Professional landscapers know they're solid and stable, plus they need little or no maintenance and don't rot in areas like the Pacific Northwest, where heavy precipitation is the rule.
专业园丁知道他们是牢固和稳定，加上他们需要很少或根本没有维修，不喜欢在西北太平洋，那里暴雨是自治区腐烂。
If it is K platinum, a long time outside silvery white layer of wear and tear, inside gold exposure, is no longer white, so also need regular maintenance plating white, can maintain long new.
如果是K白金，时间一长外面银白层磨损，里面黄金暴露，就没有以前那么白，所以也需要定期保养镀白，才能保养长新。
Regardless of the quality of the product is also the need for careful maintenance, any electric shutter doors are no exception.
无论多优质的产品也是需要精心的保养的，任何电动卷帘门都不例外。
They cost no time, they are unbreakable, and they do not need any maintenance.
这部分代码不占用运行时间、不会被破解攻击、不需要任何维护。
A, open and close automatically in security and reliability according to hydraulic difference without noise and in no need of operator and maintenance.
根据水压差自动开启和关闭，安全可靠，无噪音，无需人员操作，无需维护。
For ship yard, cooling side no water pumps, ductwork, inlet filters, vlves, electrical equipment and savings are need, less installation cost, Fot the owner, less maintenance.
对船厂来说，冷却水侧不需要泵、水管、滤器、阀和电控设备等，安装制造费用低；
Hardware accessories are generally in no need of special care maintenance.
五金配件保养一般不需要特别护理，维修。
No dot means that there is no need to perform maintenance on that specific part, unless the part is obviously in need of repair.
没有点的意思，有没有需要对特定部分的维修，除非是明显的部分需要修理。
Of reliable positioning structure and special high strength long-life light source, no need of maintenance, to ensure that the equipment can work stably for a long time.
可靠的定位结构及特制高强度长寿命光源，无需维护，确保仪器能长时间稳定工作。
The machine moving parts adopt imported plactis bearing, no need to put on oil, no maintenance, less pollution.
本机直线运动部分均采用进口工程塑料轴承，无需加油，免维护，减少污染。
Using HP45 ink cartridges easy to replace cheap no need more maintenance print clearly and compatible with most CAD HP-GL file.
使用惠普hp45号墨盒，更换方便，价格便宜，无须过多保养，打印清楚并与大多HP - GL文件兼容。
But no matter how careful the maintenance, all vehicles need to be repaired sometimes.
不过，不管多么小心地保养，所有的车子有时候都必须修理。
Password protection, allowing only in charge of personnel, operating, preventing unauthorized people changed parameters, no need of maintenance, no need of regular calibration.
〇密码保护，只允许专管人员操作，防止非授权人改变参数，无需维护、无需定期校准。
Maintenance free operation, no need to add water, no equalizing charge required.
设计简洁，免维护，无需补水，不需均衡充电。
But no matter how careful the maintenance, all vehicles need to be repaired sometimes.
不外，不论多么鉴戒地保养，全部的车子偶尔候都必需修理。
It is no need to maintenance under normal circumstance. It should be serviced by professional when repaired.
在正常操作条件下，压力阀是不用维修的，特殊情况需要维修时，应由专业人员来进行。
Standard by-pass switch, no need to cut down power and stop production for repair and maintenance of equipments.
标准旁路开关，定期保养和维护时不用停电待产。
Using HP45 ink cartridges, easy to replace, cheap, no need more maintenance, print clearly, and compatible with most CAD HP-GL file.
使用惠普hp45号墨盒，更换方便，价格便宜，无须过多保养，打印清晰，并与大多HP - GL文件兼容。
No need to replace the packing or the packing is entirely maintenance-free.
无须更换盘根或填料，完全免维护。
The overturning platform has the advantages of rational structure design, high operation accuracy and use stability, no need of constant maintenance.
本发明具有结构设计合理、操作准确性和使用稳定性高、无需时常维护的优点。
With purely mechanical construction and no need of outside power, the device's working principle as well as its operation and maintenance is very simple.
该装置主体结构采用自力机械式结构。原理简单，无需外部电源，操作使用、维修保养方便。
The light emitting devices require no battery power or any other form of charging, and never need servicing or maintenance.
发光器件无需电池电源或任何其他形式的收费，绝不需要维修或维护。
SHS with high reliability, high performance self-shielded, integrated components, simulation of easy maintenance, and no need for adjustment.
太阳能电源系统具有高可靠性，高自保护性能，组成集成化、模拟化便于维修，无须调整。
SHS with high reliability, high performance self-shielded, integrated components, simulation of easy maintenance, and no need for adjustment.
太阳能电源系统具有高可靠性，高自保护性能，组成集成化、模拟化便于维修，无须调整。
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