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The research also reveals that it is difficult to get blocky metallic arsenic of industrial value by the method of electrodeposition.

因此在较低温度下实现无定形砷As粉末转晶形成块状金属砷As，具有重要的环境保护意义，同时，能源消耗较低。

The crossing was very difficult because Colcord was heavier than Blondin thought.

这次横渡很困难，因为克尔科特比布朗丁预料的要重。

Empirical evidences also showed that early nationalism had its origin in regional and blood ties. Unless a grouping was assured that the interests of its own families and communities were met, it would be difficult for them to fulfil their duties and obligations to the country. This was why when a new emperor was enthroned, he would confer titles

传统爱国主义的这种特征在当时的合理性在于，在自然经济的基础上，各地的经济联系以及与此相适应的交通能力都非常有限，因此强权政治是统治者维系国家统治的基本手段，而强权只能与任人唯亲相吻合。

Blood poisoning is dangerous because once bacteria get into the bloodstream, it is difficult to prevent them flowing to the bodys vital organs.

血液中毒的危险，因为一旦细菌进入血液中，是很困难的，以防止他们流向该body s重要器官。

If you put your mind to it, it is quite difficult, even in theory, to think of a circumstance in which the eurozone would blow apart.

如果你仔细想想，即使实在理论上，也很难想象欧元区会四分五裂。

It's so difficult to smile and blow bubbles at the same time: cool..

笑著吹泡泡是一件很难的事情：但是真的很酷。。。

Blowhole is a kind of casting defects,the reasons of which are most difficult to find out.

气孔是最难分析其形成原因和最难找出防治方法的铸件缺陷。

So, the blowhole defective belongs to a technology difficult in the session of casting, and has a lot of values for research.

本论文以在KW造型线上生产的4100QB机体作为研究对象，详细介绍了4100QB机体产生的侵入性气孔的形成机理。

This method is based on our blowup sampling method of algebraic curves, which solves the difficult problem of sampling around singular points in essence.

这种逼近建立在所提出的代数曲线胀开采样的基础上，这种胀开采样算法从本质上解决了奇异点周围采样难的问题。

It is getting more difficult for a blue-collar to raise/support a family.

一个蓝领养活一个家庭是不容易的。

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。