不易的

When the parameters of complex system are variable by time, it is more difficult to design the control system.

时滞特性是工业生产过程中普遍存在的现象，由于时滞现象的存在，扰动不能被及时察觉，控制作用需长时间后才能反映到系统输出上，因此使控制器参数不易选取，若控制参数调整不当，会造成系统控制品质的下降，严重时会导致系统不稳定。

The production of Corbicula fluminea has been decreasing in recent years. The most difficult problem for farming Corbicula fluminea is lack of enough freshwater, due to the water pollution in Taiwan.

台湾蚬养殖产量并没有年年增加，反而有所减少，主要是由於淡水资源的污染，以及超抽地下水导致地层下陷的影响，使得淡水资源的取得不易。

Since environment of outdoor is complex, and light is not easy to control it is difficult and time-consuming to get correct corresponding points.

由於室外环境的复杂，光线强度不易控制，在室外影像中找到正确的对应点匹配是困难且花费时间的。

HXY-501 Health cruet are my patented product, the product is an Environmental protection type kitchen, the product's function are:* access to condiments can be operated with one hand, the use of more convenient.

HXY-501健康调味瓶是我司的专利产品，该产品是一种环保型的厨具，该产品的功能是：*取用调味品可单手操作，使用更方便*储存调味品与外隔离，食用更卫生*勺子内藏，不易污染，食用更干净*可定量取用，满足口味使您更健康。

The results indicate that the surface of cuprum foil cleaned by conventional method has a little oil and is easy to be oxidized in the atmosphere.

实验结果表明，常规有机溶剂清洗的铜箔，表面有微量的油污残留，暴露在空气中易氧化，经Ar等离子体清洗的铜箔，表面洁净、暴露在空气中不易氧化，Ar等离子体清洗10～20 min，表面性质最佳，清洗彻底，润湿角明显减小

Lead into a new model attractant, synergistic component, pesticide killing insect pests radius expanding in soil, to fine killing endangering lawn and seedling subterranean pest-insect such as grub, wireworm, mole cricket, cutworm, and has a long lasting period, difficulty resistance, low toxicity, good environment compatibility.

引入新型引诱剂、增效成份，扩大药剂在土壤中的杀虫半径，对危害草坪、苗木的蛴螬、金针虫、蝼蛄、地老虎等地下害虫有良好的杀灭作用，且持效期长达天，不易产生抗药性，毒性低，环境相容性优良。

The results from comparative analysis show that the coal has a large surface area. Particularly, there are a lot of semi-opened microspores. These two characters are the main reasons that lignite has high moisture and is hard to dewater.

实验结果表明，印尼褐煤比表面积很大，尤其是存在大量的一端封闭一端开放的孔隙结构，这是其含水量高、易吸水回潮并不易脱水的主要原因。

As the disk sharing is hidden and not easily found, so only C disk format, the issues remain unresolved, and in the reconstruction system and fully formatted partition, because all of the virus eliminated the source of Therefore, the problem can be resolved.

由于磁盘共享是隐藏的，不易发现，所以，在仅仅格式化C盘的情况下，问题得不到解决，而在重建分区系统并全面格式化后，由于消除了全部的病毒源头，问题故能得到解决。

Thisbarrier with strong elusiveness, low transparency and unpredictability has become the very big barrier for developing nations' foreign trade, particularly for China's foreign trade.

这种隐蔽性强、透明度低、不易预测的绿色贸易壁垒给发展中国家尤其是我国的对外贸易造成了很大的障碍。

Thisbarrier with strong elusiveness, low transparency and unpredictability has become the very big

这种隐蔽性强、透明度低、不易预测的绿色贸易壁垒给发展中国家尤其是我国的对外贸易造成了很大的障碍。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。