难控制的

Village township sold a piece of the production area more than 200 acres of tea plantations, tea geometrid against heavy pest happen every year, because farmers do not control time for unity, pests from the land went to another block, resulting in effect is not satisfactory, it is very difficult to eradicate pests.

村乡镇售出200多茶园，对尺蠖害虫发生严重，每年茶叶，亩生产领域的一块，因为农民没有统一的时间控制，从土地到另一害虫块，效果不理想结果，这是很难消灭害虫。

Nevertheless,it's hard work keeping his harem in check,and the male's life is about to get even harder.

然而，藏羚羊控制它的家眷显得十分困难，并且雄性的生活将变得更难。

Disease progression and the use of either modality purely to palliate symptoms.

辅导书的翻译：可能很难将用于控制病情发展和纯粹用于缓解症状的化疗与放疗区别开来。

It shows that the new Mecroburet is superior in precision, accuracy and operational performance. The new microburet has many distingushing features, such as no leakage, no bubbles, automatic filling, automatic zero set.

表明新型微量滴定管具有较好的精密度、准确度和操作性能，克服了经典滴定管活塞易渗漏、易生产气泡、装液难、近终点液滴不易控制及酸碱不通用的缺点。

In light of such problems as the long production period and the difficulty in controlling the planeness while polishing the surface of the coupler , a new design of the coupler is proposed

针对制作周期太长、控制研磨面平面度难等问题，提出了一种新的耦合器改进方案，并提出了一种可对打磨过程中包层剩余厚度进行实时监控的方法-液滴法。

In light of such problems as the long production period and the difficulty in controlling the planeness while polishing the surface of the coupler, a new design of the coupler is proposed. Meanwhile, the paper also discusses some methods to improve the polishing processes, i.e.

针对制作周期太长、控制研磨面平面度难等问题，提出了一种新的耦合器改进方案，并提出了一种可对打磨过程中包层剩余厚度进行实时监控的方法-液滴法。

Because the simultaneous stabilization of three or more linear systems is rationally undecidable, the genetic algorithms are used.

由于已经证明对于多个控制对象的同时镇定问题是NP难问题，因此采用遗传算法来进行控制器的设计。

ABSTRACT It is necessary to control the self-expression of the single construction within measure, which is limited by numbered type.

摘 要 有必要适度控制单体建筑的自我表达欲，而有限的范式很难胜任。

They might have difficulty keeping score during games, and limited ability to plan moves during games like chess.

他们可能在比赛中很难保持高分，以及在如棋类的比赛中计算下一步的控制能力。

It's very difficult to predict how some of the fear will manifest itself and most falconers will just manage the fear as addressing it can be very complex.

这很难预测后期会有多少惧怕会显现，而且大多数想控制恐惧并定位恐惧的养鹰人来说是非常复杂的一件事。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。