Biofilm communities can harbor bacteria longer and are very difficult to clean.
生物膜群落容纳细菌的时间更长且很难清洗。
Please don't leave your clothes lying about the room; it makes it difficult to clean.
请不要把衣服乱丢在房间里，这样很难洗涤。
Gum chewing is not allowed in many US school buildings, as it is difficult to clean up.
嚼口香糖是在很多美国学校的建筑里都是不允许的，由于它很难清扫。
On the floor without excess glue - this is important, otherwise it is difficult to clean off later.
地板上没有多余的胶--这点很重要，否则以后很难清洁掉。
Fluid bed dryer bags are another example of equipment that is difficult to clean and is often dedicated to a specific product.
流体床的干燥器袋是很难清洗的设备之一，经常用于特定的产品。
Large Aquariums can be used as cages, but be aware that they are more difficult to clean thoroughly and provide little to no air circulation through the cage.
大鱼缸可以用作笼子，但值得注意的是，它更加难以彻底清洗干净，笼子里的空气也不流通。
While we were working on the weapons, one soldier complained about the unusual notched shape of the M-16's bolt and chamber, which makes it difficult to clean.
我们一块擦枪，一名战士抱怨由于M - 16的枪栓枪膛的特殊凹形结构，擦起来十分困难。
Cylinder ore washing equipment widely used in all kinds of difficult to clean the bulk of ore, the ore washing machine points cylinder type and add the sieve cylinder type two kinds.
圆筒洗矿设备广泛用于各种难洗的大块矿石，该洗矿机分圆筒型和圆筒加筛条型两种。
Article 13: the various pipes, light fixtures, ventilation points and other public facilities in the clean room (area) shall be designed and installed so as to avoid areas being difficult to clean.
第十三条洁净室(区)内各种管道、灯具、风口以及其他公用设施，在设计和安装时应考虑使用中避免出现不易清洁的部位。
Focus on these pollutants an effectual regenerating reagent has been developed, and the problem that the pollutants are difficult to clean out has been solved. A dosing equipment has been developed;
针对污染物成分研制了有效的滤料再生剂，很好地解决了致密的混合污染物层难以清除的问题。
That's important in many parts of the world, where it's difficult to find clean water.
对世界上很多难以找到干净水源的地方而言，它十分重要。
He wanted to make something to help people in parts of the world where it's difficult to find clean water.
他想做点什么来帮助世界上那些很难找到清洁水源的人们。
They have organized to provide health care for each other, to feed each other, to clean up their space together, to deal with difficult situations using creative solutions.
他们团结一致，在卫生保健、食物和场地打扫上互帮互助，开动脑筋去解决各种困难。
Cities are built on money, and necessities like fresh air, clean water and a safe place to sleep are difficult to come by in cities.
城市建立在金钱上的，并且像新鲜空气、清洁水和一个安全的休息处是很难在城市里获得的。
When the existing code in a method or class is difficult to read, the next developer who works on it feels less compelled to write clean code himself.
当一个方法或类中存在一些难读的代码，下一个开发人员继续这些工作的时候，就觉得他也没有必要迫使自己编写清晰的代码。
The introduction of rifling, or cutting grooves, into a barrel had already improved accuracy, but the weapons remained difficult to load and clean.
人们将来复线（膛线）引入枪管之后提高了射击的精确度。但是装弹和清膛仍然很麻烦。
West Ham away has been a difficult match for us over the years so it's a great result for us to come away from here with three points and another clean sheet.
这几年在厄普顿公园比赛对我们来说很艰难，所以能在这里全取三分并保持不失球真是太好了。
Plastic foam is difficult to recycle unless it is kept clean and separated from other types of plastics--so many plants in the U.
泡沫塑料很难回收，除非它仍然干并且和其他类型的塑料分离，所以美国的许多回收站并不接受它。
Crooked teeth are more difficult to keep clean. This usually results in a greater incidence of tooth decay and gum diseases.
阻生齿很难保持清洁，这往往造成蛀牙和牙龈病的发病率增加。
Landlord: How can I rent the room to others if I do not clean it? What stars to stick, so difficult to scrape.
房东：我不把它清一清，我怎么租给别人啊？贴什么星星啊，难刮死了。
By contrast, economic growth can contribute to pollution and exacerbate the difficult problem of maintaining a clean and healthy environment.
恰恰相反，经济的增长有可能加剧污染，使得解决环境和健康这一难题更是难上加难。
Some patients with condyloma acuminatum and large deep roots, and their integration into the film, spreading, clinical diagnosis and treatment is difficult to thoroughly clean;
一些尖锐湿疣病人疣体较大并且根深，乃至融合成片，自身互相传播，临床诊疗很难将其彻底清除干净；
Because of the cost during the operations and production, in practice it may be difficult to adopt the clean technology in many respects.
指出了由于操作的难度以及成本上的原因，当前一些清洁化制革方法是难以在生产中实现的。
Don't really have an outstanding player but defensively are one of the best teams in the competition and very difficult to break down kept 7 clean sheets in the lead up to the World Cup.
全队似乎没有特别出众的球星，但是其稳固的后防线却是所有参赛球队中最令人称道、同时也是最不易攻破的。这支队伍还保持着自参加世界杯外围赛至今，7场比赛不失球的骄人纪录。
He admitted it is more difficult to keep clean sheets in Europe than in the Premier League.
他承认在欧战中想保持不失球要比在联赛中难得多。
He admitted it is more difficult to keep clean sheets in Europe than in the Premier League.
他承认在欧战中想保持不失球要比在联赛中难得多。
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