In the late autumn period, it may be more difficult to rule out late - moulting Vega Gulls if we are to use "white heads" as our main method of separating the two.
在秋季后期，我们如果主要是利用头部全白与否来分辨这两种，那就很难排除那些换羽较迟的织女银鸥个体。
Henry VIII (rule 1509-1547 A.D.) : England prospered in the 16th century, and as a result, it became increasingly difficult to tell the merchants from the middle class from the nobility.
亨利八世(1509年至1547年在位)：16世纪的英国经济繁荣，这使得来自中产阶级的商人和上层阶级的贵族从外貌上难以区分。
Rule of thumb is... If you find that a person is super picky, very opinionated, unprofessional, or difficult to work with up front….
当你发现一个人超级挑剔、偏执、不专业，很难再和他一起工作的时候。
As the number of rules grows, it becomes difficult to manage them, and it is tough to decide where to add a new rule.
随着规则数量增加，管理它们变得非常困难，很难决定在何处添加新规则。
The rule is that the person onstage can refuse to answer any question. By its design, people are encouraged to ask difficult and uncomfortable questions.
规则是，在场上的人可以拒绝回答任何一个问题，但是以其设计来看，每个人都要求去问那些很难的，甚至是让人不舒服的问题。
However, it is not yet clear how the rule will be applied or how it will prevent some types of proprietary trading that are difficult to distinguish from market-making.
然而，至今为止仍然未明确该法则如何应用，或者如何阻止一些类型的自营交易，而把他们从作价市场中区分出来实非易事。
The very controversial Unique Particle Attribution (UPA) rule makes it difficult to use optional wildcards.
争议很大的惟一粒子属性（Unique Particle Attribution，UPA）规则不允许使用可选的通配符。
Although some rule engines allow for the or construct in a condition, in practice, such constructions lead to rules that are difficult to understand and test.
尽管某些规则引擎允许在条件中使用or结构，但在实践中，此类结构可能会导致难以理解和测试的规则。
As a rule, code compiled with full optimization can be difficult or impossible to debug, making it very difficult to identify bugs that may be causing the system to function incorrectly.
通常，经过完全优化的编译代码很难或者几乎不可能进行调试，这就加大了发现那些造成系统功能错误所在的难度。
While advantageous to insured nonmember Banks, this flexibility makes it difficult to predict the magnitude of the economic impact of the proposed rule on insured nonmember Banks.
虽然非党有利投保银行这种弹性，难以预料的经济影响程度提出非党统治投保银行。
Posing a stark, difficult question - how does a good man act in circumstances that seem to rule out the very possibility of decent behavior?
电影给我们提出了这样一个苛刻而艰难的问题：在完全不能容忍正直行为的环境之下，一个好人究竟应该如何去做？
Until you see the reward from Rule 2, it is very difficult to understand a bigger position being anything but wrong to you as a trader.
对于一个交易者，除非你从规则2中看到奖惩，否则，要理解一个更广的交易区域对于你来不是错误的就非常难了。
Financial data with random characteristics make it difficult to find out the rule hidden in data.
金融数据的随机特性使得隐藏在数据中的内在规则难以被发现。
To rule is easy, to govern difficult. (Johann Wolfgang von Goethe)
要支配好容易，要统治就很难。（歌德）
Substance, energy and information can exchange between simulation area and outside through non-stable boundaries and it is difficult to describe the exchanging rule accurately.
非稳定边界是指，模拟流场和外部环境通过它进行的物质、能量和信息交换具有重要影响且该交换规律难以准确刻画的边界。
On an AM3 system, it is a bit more difficult to notice, but there is a general rule that you can use.
上一am3接口系统，它是一个比较困难的通知，但有一个一般规则，您可以使用。
The rule of thumb to get your body clocks back in sync is about one day per time zone change, making it "very difficult for real road warriors to get acclimated, " Dr. Auger said.
奥格说，根据人们的经验，一般来说，每往回跨越一个时区，需要一天时间来让身体与环境同步，所以这让“经常进行商务旅行的人很难适应”。
But asynchronous machine is a multivariate close coupling non - linear time - variable parameter system. And it is difficult to control by rule and line through adding exterior signal directly.
而异步电机是一个多变量、强耦合、非线性的时变参数系统，很难直接通过外加信号准确控制电磁转矩。
Otherwise, it would be considered as impolite. This rule sounds simple, but is difficult to practice, especially for Chinese.
这条规则听起来挺简单，但对中国人来说实践起来却不是那么容易，尤其是吃面条。
Owing to the complicated variable rule of CMMs geometry error, it's difficult to convergence for using common BP neural network model arithmetic with a slow velocity.
由于坐标测量机几何误差变化规律复杂，采用一般的BP神经网络模型算法，速度慢且难以收敛。
Rule-based personalization is simple and direct, but it is very difficult to update the rule set in time.
基于规则的个性化服务技术具有简单、直接等优点，但及时更新规则库比较困难。
It is difficult to master the frequently-changing life and entity of all things; the operational rule of Tao is limitless, profound and obscure.
生命是变化莫测的，万物实体是极不易掌握的，道运筹的准则是无穷无尽、深奥而不明的。
Subjected to actual measure method and technical level, it is difficult to predict the distribution of sedimentary facies of underground strata by rule and line .
限于目前的测量手段和技术水平，要做好地下地层沉积相的预测是很难的。
It is difficult to make certain the probability of battlefield damage events in the study of the rule of equipment battlefield damage.
在装备战损规律研究中，战场损伤事件发生概率难以确定，传统的故障树理论很难给予解决。
It is very difficult to study the rule of propagation of piling noise if we use general physical model because there are too many unknown factors involved in the process of propagation.
打桩施工过程中噪声的传播规律的研究，如果建立在一般物理模型基础元上。势必会由于实际传播过程中的未知因素过多而难以深入进行。
This rule-based or functional approach is unfamiliar to many developers, and can be difficult and time-consuming to learn.
许多开发人员还不熟悉这种基于规则的方法（即函数方法），需要付出努力和花费大量时间来学习这项技术。
This rule-based or functional approach is unfamiliar to many developers, and can be difficult and time-consuming to learn.
许多开发人员还不熟悉这种基于规则的方法（即函数方法），需要付出努力和花费大量时间来学习这项技术。
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