However, one-time construction costs of green building is higher, and more difficult to operate and maintain.
但是绿色建筑的一次性建立本钱较高，且运营和维护较低。
Especially when the time path is a highly non-linear, the polynomial rules become very complex and difficult to operate.
特别是当时间路径为高度非线性时，多项式法则变得很复杂且很难操作。
Heavy smokers and drinkers are at highest risk of developing head and neck cancers, which can be difficult to operate on.
严重抽烟和酗酒者是头颈部肿瘤的极高危人群，而酗酒和抽烟使得手术难以进行。
From the outset, the machine had been difficult to operate and after several accidents, it was decided to modify and simplify the controls.
机器一开始就很难操作。发生几起事故后，决定要修改并简化操纵装置。
The traditional image edge detectors can only get multiple-pixel-wide edges usually, thus it is difficult to operate by post-processing methods.
传统的图像边缘检测算子一般都只能得到多像素宽边缘，这为后续的图像处理带来了一定困难。
String puppets are also called marionettes. a marionette may have dozens of strings attached to different joints of its body, so it is difficult to operate.
提线木偶也叫活动木偶，它的关节上系有许多线，非常难以操纵。
It is very difficult to tap inside Aluminum matrix composites. The process is difficult to operate due to its close condition, and the tap is subject to breaking.
铝基复合材料内螺纹攻丝属封闭切削，加工难度大，丝锥极易折断。
Further more, as CRM is a complicated system, it is difficult to operate and to evaluate the effect. These questions need to be further studied and discussed in practice.
另外，客户关系管理本身是一个庞大复杂的系统，实施起来有一定的难度，评价其效果也比较困难，这些问题都仍有待在实践中进一步地研究与探讨。
The M3 Lee and Grant tanks, mounting a 75mm fixed gun, had a high silhouette and was difficult to operate in combat with the heavy German PZKPFW Mark IV and Tiger panzers.
M3‘李’式和‘格兰特’式坦克，装备有75毫米固定主炮，有高大的侧面轮廓，在战斗行动中难以与德国重型的‘马克’IV型坦克和虎式坦克相匹敌。
However, because of the massive size and long history of the great relic, it is difficult to operate the planning of conservation and development substantively and practically.
但是由于大遗址的规模巨大，历史距今遥远，在遗址的保护利用规划上实质性的可操作保护很难进行。
In the process of the introduction of classical problem based learning, the combination of PBL teaching method and current teaching method was found to be abstract and difficult to operate.
将国外经典PBL教学模式引入临床教学过程中，发现经典PBL教学模式与目前教学模式结合起来时存在抽象、操控难度大等问题。
Further more, as the application of CRM is a complicated system, it is difficult to operate and to evaluate the effect. These questions need to be further studied and discussed in practice.
另外，CRM的实施本身是一个庞大复杂的系统工程，实施起来有一定的难度，评价其效果也比较困难，这些问题都仍有待在实践中进一步地研究与探讨。
Because it is difficult to trace hackers, exactly who isbehind any specific attack and how and where they operate remains to alarge extent a mystery, technology experts say.
技术专家说，因为黑客很难追踪，所以谁是攻击的幕后黑手很难确定，他们在哪里以及如何发动的攻击在很大程度上也都是谜。
That is now becoming extremely difficult in Pakistan, so you have to operate more through local staff, who are not more dispensable but are able to operate in ways that are less high profile.
这在变得巴基斯坦极其困难，所以必须更多的依赖于本地员工来运作，他们并不是那么的不可或缺，但是能够更低调地做事。
He said he has had to operate on debarked dogs after excess scar tissue built up in the throat, making it difficult for the dog to breathe.
他说他已经发现做完声带切除手术的狗在喉咙里会产生过多的疤痕组织，使狗狗呼吸变得更加困难。
But both companies are still years away from planting enough trees to operate sustainably; and a recent crackdown on illegal logging in Indonesia promises to make their business even more difficult.
但这两个公司要想实现稳定的纤维供应还需要几年的时间种植足够砍伐的树木，但随着最近针对非法砍伐树木行为打击力度的增加，又使这两个公司的生意如履薄冰。
On the sidelines of the event, [gm99nd] co-founder Sergey Brin touched upon [gm99nd] 's current China dilemma, saying it had become more difficult for the company to operate in China over time.
在活动间歇，[gm 66nd]联合创始人布林(Sergey Brin)谈到了目前[gm 66nd]在中国的困境，他说随着时间的过去，公司在中国运营的难度增大。
As our relationship with Pakistan becomes more and more difficult, for the United States, this supply route is crucial for our ability to operate in Afghanistan.
随着我们(美国)与巴基斯坦的关系变得越来越困难，这条供应线对美国在阿富汗的行动来说，是至关重要的。
Back problems are a difficult challenge for doctors in part because it is difficult to know when to operate.
背痛难题的治疗对于医生来说是个有难度的挑战，其部分原因是手术时机的抉择。
Observers believe the real purposes may have been to scare off Iranians from working in Western embassies and so make it more difficult for the embassies to operate.
观察员相信，伊朗真正的目的是吓跑在西方大使馆工作的伊朗人，使大使馆的运作更加困难。
China's fund industry is facing many challenges, to focus on the performance of the fund's sale of the difficulties and fund management companies to operate more difficult.
当前中国的基金业面临着不少挑战，集中表现在基金销售的困难和基金管理公司经营难度较大。
Traditional method using tongs and mould with certain extent handwork to operate. It is not only low efficiency and high cost, but difficult to guarantee quality.
传统的制造方法是利用各种夹具和靠模，并辅之一定程度的手工操作来完成加工，不仅效率低、成本高，而且质量难以保证。
No staffs were harmed in either incident but they underscore the increasingly difficult conditions for aid workers trying to operate in Somalia.
两起事件中均无人员伤亡，但是这使得索马里的救助人员形势更加艰难。
How to operate vector graph on Itse? It s a difficult problem in making information system recently.
如何在数据库建立的信息系统中实现矢量图的操作，是目前建立信息系统时所需要解决的难题。
The growing distance between the spacecraft and Earth will make communication increasingly difficult. Still, Tsuda's team hopes to be able to operate the vehicle and collect data for at least a year.
飞船与地球之间的距离日益遥远将会使通讯更加困难，然而，Tsuda的研究小组可以至少维持一年的时间进行控制和信息收集。
Sensors usually operate on battery which is difficult to recharge or replace due to environmental reasons.
传感器节点由电池供电，由于部署环境等原因，不易对电池进行充电或更换。
Interviewee: No, but I am very much interested in learning how to operate a word processor. I have been trained in typing. So I don't think it will be difficult for me to learn.
被面试者：不会，但我很有兴趣去学，我曾受过打字训练，所以我想我会很容易学会的。
Interviewee: No, but I am very much interested in learning how to operate a word processor. I have been trained in typing. So I don't think it will be difficult for me to learn.
被面试者：不会，但我很有兴趣去学，我曾受过打字训练，所以我想我会很容易学会的。
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