Military logistics systems are large and complex systems that can be difficult to control. Control theories provide a potentially powerful means.
军事后勤系统是一类控制复杂的大系统，控制理论为复杂大系统提供了一个有效的控制方法。
Due to the high polarity of vinyl ester chemistry, it is known to be difficult to control the rheology with normal thickening additives or hydrophilic fumed silica.
但由于乙烯基酯树脂的高化学极性，用普通增稠剂和亲水性气相法二氧化硅对其实现很好的流变性控制是相当困难的。
Boys, of course, attract more abuse, such as beating, because, once again, parental expectations are high, and boys tend to be more energetic and difficult to control than girls.
当然，男孩会受到更多的虐待，比如殴打，因为父母的期望又很高，而且男孩往往比女孩更有活力，更难控制。
The outbreaks will be difficult to detect and control in rural backyard flocks.
在农家后院的鸡群中发现和控制禽流感暴发将是极为困难的。
Yes, exercising self control can be both difficult and boring, but it actually has many not-so-boring rewards, from staying out of the hospital to being able to afford your own home.
是的，锻炼自控能力会是既困难又乏味的，但是实际上它可以带给你很多不那么乏味的、从避免上医院到有能力负担自己的房子之类的奖励。
There may be circumstances under which it's the case but it's often difficult to control.
可能在某些环境下可以做到,但是通常情况下很难控制。
Previous laws have been rejected in 23 states since 2007, but gun-control activists say it will be difficult to stop the Texas bill passing this year.
自2007年起，允许带枪的相关法案已经在23个州被否决，但是枪控激进分子认为，今年很难阻止德克萨斯州通过这一议案。
The virus has also proved to be particularly difficult to control in poultry populations and is now considered endemic in parts of South-east Asia.
该病毒还已证明很难在禽群中得到控制，目前已被认为在东南亚部分地区呈地方性流行。
Very possibly she knew that if my vanity was once allowed to get the upper hand it would be difficult afterwards to bring it under control.
她很可能知道如果我的虚荣心一旦站了上风，那么日后就会像脱缰之马，难以驾驭。
King founders find it difficult to share control and can be very stubborn when facts on the ground challenge their vision.
国王型创始人不仅很难与他人分享对公司的控制权，而且当现实与其愿景不一致时，他们也会表现得固执己见。
People usually assume that it is difficult and very dangerous to spray locust swarms from the air and that control measures can only be exercised on the ground.
人们一般认为，从空中向蝗群撒药很困难并且很危险，因此只能采取地面防治措施。
As difficult and slow as the process might be, the education of women in such countries is a necessary first step to giving them the opportunity and motivation to begin to control their own destiny.
虽然过程辛苦缓慢，但教育妇女是必不可少的第一步，能给这些国家开始控制自己命运的机会和动力。
Although you'll be able to modify the parameters that control the precision with which you need to enter your secret knock, it can still be very difficult to match the precise timing.
尽管您可以通过修改参数来控制输入密码敲打操作所需要的精度，但是这仍然很难匹配精确的时间。
"If all such activities go underground, they would be more difficult to control," Lee says, potentially opening a greater market for trafficking.
Lee指出，如果所有活动都转入地下的话，监管会更加困难，而且还可能会滋生一个更大的人口贩卖市场。
The more of these inversion-of-control anti-patterns the software has, the more difficult it will be to reshape it to work with Ninject -- or any dependency injection technique, for that matter.
软件具有的控制反转反模式越多，那么使用Ninject对代码进行优化就越困难——应该说任何一种依赖注入技术对于这种情况都难以应对。
It is difficult to criticise the American, who has invested heavily since he took control three years ago, but if the club are to compete at the top then big money needs to be made available again.
很难去批评这个美国人，在他三年前接手维拉时，他已投入了大笔资金。
Yes, because we are creating the best finished watches and it would be very difficult for me to control the quality if I have too many watchmakers.
是的，应为我们制作最为完美打磨的手表。如果我们的团队太大，我就很难控制质量了。
If disease then flares, it can be very difficult to get it back under control.
如果疾病此后发作，再把它控制可能能是非常困难的。
The fear of missing out on a purchase makes it difficult to control the impulse to buy something that could be bought by someone else first.
担心错过好东西使得人们难以控制他们购买的冲动，总是担心他喜欢的东西会被别人抢先一步给买了。
Reducing the numbers of flies, mosquitoes, and rodents quickly in an emergency may be difficult, but physical screens can be used to control the immediate problem.
在紧急情况下减少苍蝇，蚊子和啮齿类动物可能会很困难，但物理屏障可以用来控制最迫切的问题。
If one of your sheets isn't properly tied down, the ship would become difficult to control and would be "to the wind, " or moving erratically.
一旦一条绳索没有绑紧，船便会变得难以控制，随风行驶，或者飘摇不定。
The model-free control is especially useful for real nonlinear systems whose model parameter are very difficult to be identified and time varying.
此无模型控制方法非常适用于实际的模型参数难以辨识，且是时变的非线性系统。
The model-free control is especially useful for real nonlinear systems whose orders and modeling are very difficult to be known and time varying.
无模型控制方法非常适用于实际的阶数难以知道或难以辨识，且是时变的非线性系统。
The most difficult is to control your fear. It's normal for humans to be afraid of falling, so it's difficult not to feel fear.
最困难的是控制你的恐惧感，通常人们都担心坠落下来，所以很难不感到恐惧。
It would be difficult for a business to make profits if careful control is not exercised at all stages.
如果在所有阶段没有行使小心的控制，对义务利润的获得是很困难的。
Pneumatic PWM position servo system is nonlinear system. The satisfied results are difficult to be obtained with traditional control method while the friction force of cylinder is large.
气动脉宽调制位置伺服系统是非线性的系统，在气缸摩擦力较大的情况下，采用传统的控制方法难以取得满意的效果。
Rage can be directed, but it is very difficult to control.
狂怒可以被定向，但是非常难以控制。
The control of process such as CSTR reactor can be very difficult due to their highly nonlinear nature.
对于像CSTR化学反应器的控制，由于其过程本身的严重非线性而变得十分困难。
However, at building construction process the technical points of concrete pouring tends to be overlooked and its quality is difficult to control.
然而，在建筑施工过程中混凝土浇筑的各个环节中技术要点往往被人忽略，其质量问题较难控制。
However, at building construction process the technical points of concrete pouring tends to be overlooked and its quality is difficult to control.
然而，在建筑施工过程中混凝土浇筑的各个环节中技术要点往往被人忽略，其质量问题较难控制。
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