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化工研发
求荐离心泵制造厂家? 我们使用比较好的是辽阳友信的离心机.查看更多
如何回收利用加氢装置高分与低分之间的压差势能?? 现在液力透平应用的很广泛,一般用在加氢原料泵上,可以节约不少电能.不过感觉高分压力低了点.查看更多
来自话题:
煤气过滤器的选型? 可以考虑一下,不锈钢丝网填料------纯属个人想法,没实践过。查看更多
帮我看看这个模型把?有什么好的解决方式?又4个泵,膨胀节 ...? 楼主把它转成5.1的吧,好让大家学习学习,谢谢。查看更多
来自话题:
55%稀硫酸的再利用? 我们公司可以浓缩稀硫酸20%-93%,你公司只需要55%-93%,小意思啊,我们主要采用真空浓缩,并充分利用二次蒸汽,节能,环保!可以与我联系啊,我已经加你我为好友了,我的个人资料有联系方式,非常乐意为你们公司服务!查看更多
换热器的材质问题? 被加热的介质是什么?组分有哪些? 为什么必须是旋转加热型式? 介质为油砂和碱水的混合物 查看更多
十二碳二酸(dodecanedioic acid,简称DDDA)? 你要做神马,凑够40个字。。。。。。。。。。。。。。。。。。。。。。。。。。 你好,想做长碳链尼龙。尼龙1012,尼龙1212,其原理及原料。谢谢! 查看更多
罐顶板6毫米厚度,焊几遍合适? 4个的焊条,一般慢走一遍即可,但要保证不漏。如果要求两遍就更好了查看更多
MATCHLINE和B.L.什么意思? matchline 接续线 通常简写为m.l. 一般用粗线双点划线表示 我们出的图纸上都这样表示 m.l.see.dwg.noxxxx 如下图查看更多
用Aspen如何估算理想气体热容(CPIG)? 3年后遇到了这个问题,请问题主解决了没有呢?查看更多
来自话题:
冶炼烟气制酸,如何提高产品的色度及透明度? 楼主能不能详细说一下亚硝酸类物质为何造成硫酸变色,谢谢赐教查看更多
关于汽油闪点的测试问题? 一般用开口杯法。我记得香料行业用的是闭口杯法,开口杯法我没有用过。 你网上找些仪器简介看下查看更多
润滑油调配技术? 保密的东西是不可能给你的,这就好像是他人的专利一样,但是通用的资料也不少,你搜索就行了,润滑油的品种很多,但是都以通用的原料为基础,很多是靠经验摸索出来的。查看更多
来自话题:
装置现场打手机的杜绝和解决办法? 这与领导的重视程度有关,有的领导虽然嘴上一直强调要注意这方面的安全,可是如果厂里不给提供相应的措施,才能更好的解决这种现象!查看更多
每天一课,职称英语带翻译? 30. becoming a child of nature: it's a twofold task ofparents and children.   30、做大自然的孩子——父母与孩子双方的任务、   1. if children discover the beauty of nature while they are young, they will respect nature and try to preserve it when they are older. parents play an essential role in helping their children make this discovery. although young children are not able to understand the complex relationship of man to his environment, they can be educated in this aspect and learn how to respect nature and gain a simplified understanding of the importance of a healthy ecological environment. helping children to gain such an appreciation and understanding can be an exciting adventure which is available to all that are willing to explore and use their senses of touch, taste, smell, sight, and heating.   1、如果孩子们在年幼的时候发现了自然的美,他们长大了就会尊重自然,保护自然。父母亲在帮助孩子们发现这种美的过程中起着关键作用。尽管孩子们不能理解人类和环境之间的复杂关系,但他们可以得到这方面的教育,学会尊重自然,简单地理解拥有健康生态环境的重要性。帮助孩子们获得欣赏自然之美、理解环境之重要性的能力可能是一种令人激动的经历,所有愿意开发和利用触觉、味觉、嗅觉、视觉和听觉的人都可享受这种经历。   2. wonderful phenomena of nature are all around us. for example, have you ever awakened early to watch the sun rise? have you ever stopped to observe a setting sun, a star-filled sky, or an october moon? have you ever gone out after a rainfall and delighted in the scent of the fresh air? have you ever taken time to listen to the song of the birds, the trees' rustling in the wind or the music of the crickets? have you ever held a seashell to your ear and heard the roar of the ocean? have you ever tasted fresh berries, melon or spring water? have you ever shared the above experience with your children?   2、我们身边到处都是奇妙的自然现象。比如,你曾清早起床到外面观看过日出吗?你曾停下来观察过夕阳西下、繁星满天或十月夜空的明月吗?你曾雨后外出,享受过清新空气的滋味吗?你曾花时间侧耳倾听过鸟儿婉转、风吹林梢或蟋蟀鸣唱吗?你曾把贝壳贴在耳边,倾听过海洋的呼啸吗?你曾尝过新鲜莓子、瓜果或泉水的滋味吗?你曾和你的孩子们分享过上述的经历吗?   3. to help children gain an understanding of the world around them and the importance of ecology, parents can use interesting objects from their children's everyday lives. for example, most children are familiar with rocks. they have seen them, touched them, and played with them. however, they will not discover the beauty and uses of rocks unless you help them. collect some rocks and point out that some rocks are minerals, others may be used for decorations, like marbles used in building houses, and still other rocks are used to build roads. visiting mountains if possible can help them gain a better understanding of rocks.   3、父母可用孩子们日常生活中见到的令人感兴趣的具体东西来帮助他们理解周围的世界,理解生态的重要性。例如,大多数孩子都熟悉石子,他们亲眼见过石头,摸过石头,也玩过石头。然而,如果不帮助他们,他们不会发现石头的美丽和用途。收集一些石头,告诉他们有些是矿石\有些叫以作装饰用,像用来建造房子的大理石—样,还有一些可以用来铺路。如果可能,就去看看山,这样能帮助他们更好地认识岩石。   4. most young children love to play in dirt. you can help your children to gain the concept that soil is not just dirt but something necessary for life. most plant life grows in some form of soil. take your children for a visit to gardens and farms where food is grown. perhaps your children can have their own plants or gardens. you can explain to them that plants are necessary not only for food but also for controlling floods. during a time of heavy rain or snow, plants help to absorb the moisture.   4、大多数孩子都喜欢玩泥土。你可以帮助你的孩子获得这样一个概念:土壤不仅仅是“泥土”,而且是生活必需的东西。大多数植物都在某种土壤中生长。带孩子们去参观花园和种食物的农场。也许,你的孩子有自己的植物或花园。你可以向孩子们解释,植物不仅是制作食品所必要的,而且对于控制洪水也是不可少的。下大雨或大雪时,植物有助于吸收水分。   5. it's difficult for young children to gain an appreciation of rain because rain to young children means that they can't go out to play. however, you can try to help your children realize that rain is vital to life. without rain, plants and animals would die of thirst. your children know what it feels like to be thirsty. if you have plants and allow your children to help you water them, this will help them to start recognizing the importance of water to life.   5、要小孩子欣赏下雨是很困难的,因为下雨对他们来说意味着不能出去玩。但你可尽力帮助孩子们认识到雨水对维持生命是不可缺少的。没有雨水,动植物就会干渴而死。孩子们知道干渴是一种什么感受。如果你有一些植物,那么让孩子们帮你去浇灌,这有助于他们开始认识到水对生命的重要性。   6. you can also help your children gain some understanding of the importance of clean oceans. even young children realize that an ocean filled with garbage is not good for sea life. many fish can die or become contaminated from the trash that is thrown into the ocean. people, who unknowingly eat fish contaminated by pollutants in the water, can become seriously ill.   6、你还可以帮助孩子们理解海洋清洁的重要性。连小孩子都知道,充满垃圾的海洋对海洋生物是有害无益的。很多鱼会因扔进海洋的垃圾而死去或受污染。不知道实情的人吃了被水中污染物污染的鱼可能患重病。   7. many children, through the examples, can begin to become more aware of man's relationship to his environment. however, even more importantly, you can help them by example to learn to respect their environment. young children learn not only from first hand experiences but by imitation. if you show your children by your actions that you respect the environment in which you live, this will start them on this path.   7、通过这些实例,许多孩子可能开始对人类和环境的关系有更多的认识。然而更重要的是,你可以以身作则,帮助他们学会尊重环境。小孩子不仅通过亲身经历,而且通过模仿来学习。如果你用行动向孩子们表明你尊重你所生活的环境,这会引导他们走上爱护环境的正道。   8. do you avoid putting pollutants in the air by never burning your leaves? have you ever stopped smoking? do you respect plant life? do you stop anyone from carving in the bark of trees? do you avoid walking on fresh grass? do you conserve water and energy?   8、你从不烧树叶以免污染空气吗?你曾戒过烟吗?你尊重植物的生命吗?你阻止人们在树皮上乱刻吗?你避免从新鲜的草地上走过吗?你节约用水用能吗?   9. by setting a good example for your children, you are not only giving them a good model to imitate, you are also helping them to increase their chances for survival. it is not too soon to help your children to appreciate, understand, and respect the environment in which they live.   9、通过为孩子们树立好榜样,你不仅给他们提供仿效的好典范,而且帮助他们增加生存的机会。帮助孩子们欣赏、理解并尊敬他们所生活的环境越早越好。 查看更多
国内哪些单位生产高纯氨? 国内大部分国内工艺是吸附加精馏查看更多
更换保温层的次序,保温效果是否变化? 肯定会变化,有可能变化很多倍,你是否需要定量计算变化了多少?为了节约能源,降低成本,建议你参照化工原理传热过程章节,里面有详细的计算公式!查看更多
空分的膨胀透平容易带液吗? 空气膨胀容易带液。查看更多
来自话题:
汽轮机的用气量的决定因素? 你说的情况很清楚了 压机排气量是决定因素,通过设定转速来控制调速器门的开度,这个最终决定了用气量。 你说都是一样的,就应该考虑蒸汽流量表了。查看更多
是否会对氧纯度有好处? 1.当污氮取出量增加时,污氮中的含氧量将增加,也就是氧的提取率将减小。 2.当污氮的取出量增加,塔内的回流比减小,此时氧纯度提高。查看更多
简介
职业:通标标准技术服务有限公司 - 化工研发
学校:曲阜师范大学 - 孔子文化学院
地区:湖南省
个人简介:既然选择,何来的后悔。查看更多
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