不易的

Farmers can switch to less susceptible breeds, and Professor Baylis points out that in countries where bluetongue is endemic resistance to the disease has evolved, so animals tend to suffer less from it.

农民可以转向培养一些不易受感染的品种；并且Baylis教授指出，在一些受蓝舌病困扰的国家，本土对病毒的免疫已经有进化，所以动物受病毒的伤害没有过去那么大。

To make the engineering machine economize on energy efficiently will spread to move system to carry on a control towards launching machine and, reasonable allotment power, make it be placed in the best work condition;For easing a pilot to labor strength and improvement to manipulate function, need to adopt an automatic control, carry out an engineering machine automation;To complete the homework of high technical ability need intelligence to turn;For the sake of exaltation safety, demand safety control, carry on circulating appearance surveillance, the breakdown reports to the police automatically;Because the construction realm expands, in order not to the personnel arrive can't and not come-at-able place and the very bad place of the homework environment go to homework, need to be adopted long-distance leave remote control and no man to drive a technique.

要使工程机械高效节能，就要对发动机和传动系统进行控制，合理分配功率，使其处于最佳工况；为了减轻驾驶员劳动强度和改善操纵性能，需要采用自动控制，实现工程机械自动化；要完成高技能的作业，就需要智能化；为了提高安全性，需要安全控制，进行运行状态监视，故障自动报警；随着建设领域的扩展，为了避免人员到达无法及不易接近的场所及作业环境十分恶劣的地方去作业，需要采用远距离遥控和无人驾驶技术。

The operating system curriculum's content is the synthesis of each type operating system's composition structure, the design concept, the design method and the theory, Therefore, this curriculum knowledge is more, conceptive is strong and is abstract, all of those make the student feel that it is not easy to understand and grasp in the study process.

操作系统课程的内容是各种类型操作系统的组成结构、设计思想、设计方法和理论的综合，所以，该课程知识点多、概念性强而抽象，使学生在学习的过程中往往感到不易理解、难以掌握。

With one hand I caught the jib-boom, while my foot was lodged between the stay and the brace; and as I still clung there panting, a dull blow told me that the schooner had charged down upon and struck the coracle, and that I was left without retreat on the Hispaniola.

我一只手攀住三角帆，一只脚夹在绳索和转帆索的缝隙中。就在我提心吊胆悬在那里的时候，一下不易被察觉的撞击提醒我：大船已把小艇撞沉了。我的退路已被切断，只能留在伊斯班袅拉号上了。

There are two main disadvantages in the present differential algebra equation model used in AC/DC system: one is that 'dimensional calamity' can occur with the increment of DC transmission lines; another is that it is difficult to deal with the switch of DC control mode.

目前普遍使用的AC/DC系统的微分代数模型主要存在2大缺陷：①随着直流线路的增加可能出现"维数灾难"问题；②不易处理直流控制方式的切换，计算繁杂。

But in a news release issued today, ITA President Dan Humiston acknowledged that UV exposure from tanning beds is not discernibly different from UV exposure from the sun.

但在今天的新闻发布会中，ITA主席Dan Humiston承认日光浴床的紫外线暴露同暴露于日光中的紫外线的区别不易被发现。

Theseexhibit articles have the tent which the short period of time opens,has can accompany the child to grow as you like not Yi Diu fountainpen, also had fuses China "the masculine and feminine elements" theconcept,风吹雨打 still the brand-new rattan chair, but also hadeach kind to fill skillful thoughts, good design chinaware, tool,electric appliance, health bath and so on.

这些展品有眨眼间就打开的帐篷，有能伴随你孩子成长又不易丢的钢笔，也有融合中国"阴阳"概念，风吹雨打仍然崭新的藤椅，还有各种充满巧心思、好设计的瓷器、工具、电器、卫浴等等。

However, CTVE could not display the change of tissue color, and it was difficult to investigate the surface appearances, characterization of lesion, and the motion of laryngeal structures such as true cord and epiglottis, etc.

CTVE不能显示组织的颜色变化，不易观察病变的表面状况，难以判断病变的性质，以及不能观察喉内结构的活动情况。

It also has a watchband that is made of sailcloth material designed for sporters because of its flexility , and a grey dial on which fluorescen part of its indexes administer to my sight at night .

银色的外壳使用了防划伤材料，所以至今还光亮如新；帆布材质的表带是为运动人士设计的，因为它柔软不易折断；指针的荧光部分方便夜间观看。

However,for free decay method,its range of changing frequency is very narrow and the initial states of samples are not easily repeated because of the effect of crystallization;for forced oscillation method,the measuring results are seriously affected by crystallization,which is caused by slow heating rates.

然而，自由衰减法有限的变频范围，以及由于受晶化的影响，使两次升温测量时样品的初始状态不易重复；用强迫振动法测量时，同步变频条件限制了升温速率，造成金属玻璃的晶化过程严重影响了测量结果。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。