But there are other aspects of his role that do not get as much attention and may be more difficult to replace.
但是对于他的角色，仍然存在许多我们不曾关注的方面，可能这才是最难以被取代的。
I think everyone has got more responsibility because it's difficult to replace a player of the calibre of John Terry.
我想每个人都有更多的责任，因为特里很难取代。
That can be a handy trade off, especially for lamps used in places where they are difficult to replace-eg, in chandeliers hanging from high ceilings.
这是一种简便的平衡，尤其对于那些安装在难以更换地方的灯泡——比如枝形吊灯里的灯泡。
Only after all that time was able to excel at stripping the aged wine aroma and taste coordinated harmony is so fascinating and difficult to replace.
毕竟那些唯有时间才得以萃练成的陈酒香气与圆融协调的口感是如此地迷人与难以取代。
When the opposing molars severely extrude into the edentulous space, it is difficult to replace the missing teeth with either fixed or removable prostheses.
当对方磨牙严重挤压到牙列的空间，很难取代缺牙与任何固定或可移动的假肢。
Because the size of a sensor node is generally small, the battery power is very limited, while the nodes are usually deployed in broad areas, and it is difficult to replace the batteries.
因为传感器节点一般比较小，利用能源非常有限的电池供电，而节点又通常在广阔的环境下部署，难以更换。
Sodium is in every food category, and it is more difficult to replace than the partly hydrogenated oil that composes trans fats, or than sugars, because there are easy substitutes for oils and sugars.
每种食物中都含有钠，要替代钠比替代含有反式脂肪的部分氢化油和糖要困难得多，因为找到油和糖的替代品十分简单。
These replace nutrient-dense foods and beverages and make it difficult for people to achieve recommended nutrient intake while controlling calorie and sodium intake.
这些食物取代了营养丰富的食物和饮料，使得人们在控制卡路里和钠提取的同时也很难达到推荐的营养的摄取。
Having to run wires or regularly replace batteries would be too difficult.
必须架设电线或定期更换电池将太过困难。
Dell'Orco won't replace all of them, because new recruits would have legal job protections that would make them difficult to lay off if business doesn't improve.
戴尔俄科不会把所有的人都换掉，因为新入职的员工都有法律的保护，生意不好的时候，公司没法裁员。
It is worth remembering that this greater team spirit is an extraordinarily difficult thing to replace quickly when it is lost.
大家一定要记住，这种难能可贵的团队精神一旦丧失，重建，就不是一件简单的事。
But inventing a machine to replace the human treading of grapes has proved almost as difficult as finding the "holy grail".
然而，要发明一种可以取代人脚踩碎葡萄的机器以证明几乎同找到圣杯一样困难。
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。
In addition, cables needed for carrying analog radio frequency signals are expensive, fragile and difficult to install and replace.
此外，携带模拟射频信号所需的电缆价格昂贵、脆弱，难以安装和更换。
And so I come here with an acute sense of the costs of armed conflict — filled with difficult questions about the relationship between war and peace, and our effort to replace one with the other.
因此，我是带着对武装冲突的代价的敏锐感觉来到这里的——心中充满有关战争与和平的关系以及我们为用和平取代战争而努力的难题。
The difference coefficient was used to replace the exact derivative which is difficult to be computed, and a new algorithm was presented by using the idea of reduced gradient method.
利用差商代替难以计算的精确导数，结合既约梯度法的思想建立新的算法；在目标函数一致凸的条件下证明了既约差商法的整体收敛性。
The difference coefficient was used to replace the exact derivative which is difficult to be computed, and a new algorithm was presented by using the idea of reduced gradient method.
利用差商代替难以计算的精确导数，结合既约梯度法的思想建立新的算法；在目标函数一致凸的条件下证明了既约差商法的整体收敛性。
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