Helicopters are expensive and delicate machines requiring heavy maintenance, especially when flying in dusty conditions.
直升机是昂贵而易损的机器，需要精心保养，尤其是在尘土飞扬的条件下飞行时。
If you're not doing heavy up-front development or committing to years of maintenance on each feature, you can easily try out different things.
只要你没有进行大批量的前期开发，或是承诺在特性上维护多年，你就能随意尝试不同的东西。
By the 19th century, the canal fell into disrepair thanks to neglected maintenance, a major flood, and heavy pollution.
到19世纪，由于疏于维护，大洪涝和污染严重，大运河的命运陷入塌毁的境地。
Heavy Duty trunnion - The ball trunnions are designed for demanding applications requiring long service life, with a reduction in maintenance time and costs.
重型耳轴，球耳轴是苛刻的要求，使用寿命长的应用而设计，以期在维护时间和成本的降低。
Supervise, co-ordinate and schedule the activities of workers who operate cranes and construction, paving, drilling, railway maintenance and other similar heavy equipment.
监督，协调和统筹安排操作起重机和施工，摊铺，钻井，铁路维护及其他类似的重型设备工人的活动。
The in-house systems did not make full use of the available point of sales data, and required heavy manual maintenance.
机构内部的系统没有充分利用现有的销售数据，并且需要繁重的手工维护。
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。
As CT equipments are rapidly popularized in China, the maintenance work in hospitals are becoming increasingly heavy.
CT设备目前在我国正在迅速广泛普及，医院CT维修工作也日趋繁重。
Through the activities of solid, heavy sentiment in the maintenance of customer relationship has achieved remarkable results.
通过活动扎实的开展，重型在客情关系的维护上取得了显著的效果。
Requirement: Male, below 30, Bachelor Degree of electrical major, minimum 5 years working experience of electrical machine maintenance and heavy equipment maintenance and break-down maintenance.
要求：男性，30岁以下，电气专业学士学位，至少5年电气设备维修，重型设备维护及日常维护工作经验。
Requirement: Male, below 30, Bachelor Degree of Mechanics major, minimum 5 years working experience of mechanical machine maintenance and heavy equipment maintenance and break-down maintenance.
要求：男性，30岁以下，机械专业学士学位，至少5年机械设备维修和重型设备维护，及日常设备维护相关工作经验。
Railway track construction and maintenance plant. levelling and layout maintenance of points and crossing. tamping and trimming heavy mechanical.
铁路建造和维护设备。尖轨与辙叉的水准测量和布局维护。捣固和修整重型机械。
In the light of heavy loss and bitter lesson from the lose efficiency of many UPS battery being less than 5 years service in Hanchuan Power Plant, its operation and maintenance method was discussed.
针对汉川电厂多组UPS电池在不到5年的使用时间里，连续失效报废所造成的巨大损失和惨痛教训，探讨了UPS蓄电池在运行和维护中的科学方法，并强调对免维电池的正确认识；
Suitable to use in maintenance or no pairing work of different kinds of engine and cleaning for heavy greasy dirty on components.
适用于各类发动机的维护、维修和重污垢零件的清洗。
Therefore, the development of a simple structure, good reliability, easy maintenance, and can achieve a long stroke, large displacement, heavy load of new unit, is still a much-needed study.
因此，研制一种结构简单、可靠性好、维护方便且能实现长冲程、大排量、重负载的新型抽油机，仍然是一个急需研究的课题。
The technology has been a kind of daily maintenance measure in the large-scale development of Taobao heavy oil reservoir by cold heavy oil production with sand technology.
该技术已成为套保油田排砂冷采、规模开发的最有效的日常维护生产措施。
With simple structure, convenient operation and maintenance, and low noise, this loom is suitable for weaving heavy and high-density canvas, tent fabric and industrial fabric.
该机结构简单，操作维修方便，噪音低，适合于织造厚重、高密品种的帆布、篷布织物及工业用布。
Under Mobutu Sese Seko's negligent and plunderous rule, much of the Belgian-built road system was buried under rainforest or destroyed by heavy lorries and lack of maintenance.
由穆贝托尸位素餐又劫掠成性统治，大部分比利时统治时期修筑公路系统，现在或掩埋在雨林中，或因卡车超重以及缺乏维护损毁。
Concrete repairs under heavy traffic flow remains a difficult problem in highway maintenance.
在高交通流量下砼的修补是公路养护部门的一大难题。
The paper introduces the principle and technological process of magnetic powder inspection and its application to maintenance of heavy-duty truck.
介绍了磁粉探伤的原理、工艺流程及在重型汽车维修中的应用。
The bank claims it was the result of site maintenance and heavy traffic. What say you?
银行方面宣称，是因为网站维护和网络通路拥挤造成的。
A maintenance friendly pillow block design with heavy duty base and rigid gusset bracing for a rugged, durable installation.
方便维护的带有重负荷基础的轴台侧装式混合器，安装有坚固的耐用的刚性联接板。
Our Company has many heavy trucks and hydraulic maintenance engineers, to provide customers with fast and convenient after-sales service.
我公司还拥有多名重柴及液压维修工程师，能为顾客提供快速，便捷的售后服务。
The effect of atmospheric entropy divergence, especially in mid-and upper-levels, on theoccurrence and maintenance of heavy rain is as important as latent heating, even more important.
大气熵辐散，特别是中、高层的熵辐散，对暴雨发生和持续的作用，不仅和潜热加热同样重要，甚至更有决定性意义。
Heavy bamboo garden outdoor furnitures and ancient building maintenance for decoration materials etc.
重竹园林户外家具和古建筑维修装饰用材料等。
Objective to explore the better scheme of maintenance and consolidation after schistosomiasis chemotherapy in heavy endemic areas in Yunnan Province.
目的探索云南省血吸虫病重度流行区化疗后维持巩固方案。
This article gives some discussion on the prevention and maintenance of the straight rails with alternative uneven side wearing in the heavy-load and fast-speed section.
文中对重载快速区段直线钢轨交替不均匀侧磨的预防与整治作一些探讨。
Caption: Dirkou market is awash with car-maintenance objects thanks to the heavy traffic from Libyan and Nigerien drivers plying the migration route.
描述：迪尔库到处都有汽车配件店，这要归功于尼日尔和利比亚司机在迁移路上的来回奔波。
Disadvantages: high cost of foundation pit, in case of heavy rain, easy water, installation, maintenance and maintenance needs to be completed in the foundation.
【缺点】：基坑费用高，遇强降雨天气，易积水，安装，维修和保养需要在基础内部完成。
Cleanout hole series can be set at the cornet from the bottom tank shell course to the bottom of the heavy oil storage tank for cleaning and draining during maintenance.
清扫孔装于重质油罐底部、清扫孔油罐可放出污水扫除内污泥。
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