类
- 与 类 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Second, plasticizers industry trends: the main production of plasticizer tends to continuous large-scale production, and special plasticizers tend to many varieties, small batch intermittent production; products, traditional, low-cost, security risk phthalate plasticizers are being new, safe but relatively high prices of citric acid ester plasticizers, trimellitic acid plasticizer replaced this trend performance in foreign markets significantly, and domestic prices because of factors, phthalate plasticizers will be substantial use.
二、增塑剂行业发展趋势:生产方面主增塑剂趋于连续化大生产,而特殊增塑剂趋于多品种、小批量间歇生产;产品方面,传统的、廉价的、安全风险大的邻苯二甲酸酯类增塑剂正在被新型的、安全的但价格相对较高的柠檬酸酯增塑剂、偏苯三酸类增塑剂所取代,这一趋势在国外市场表现显著,而国内由于价格因素,邻苯二甲酸酯类增塑剂仍将被大量使用。
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Game moves free design contest to be divided in all set a program kind, art kind reach a plan kind 3 matches, victorious player is divided acquire stake of high specified number besides, organic still meeting enters net dragon company to jackaroo, the whole process of the originality of game of network of close all previous, research and development that make and operation.
游戏动漫设计大赛共分设程序类、美术类及策划类三项赛事,获胜选手除获得高额奖金之外,还有机会进入网龙公司实习,亲历网络游戏的创意、制作研发和运营的全过程。
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Using the classes from the previous two exercises, add a pair of static member functions to class Bar. The first static, named FooVal, should return the value of class Bar's static member of type Foo. The second member, named callsFooVal, should keep a count of how many times xval is called.
使用上面两题中定义的类,给 Bar 类增加一对成员函数:第一个成品命名为 FooVal,返回 Bar 类的 Foo 类型 static 成员的值;第二个成员命名为 callsFooVal,保存 xval 被调用的次数。
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Such as benzene, ketone, ester and so on.
如苯类、酮类、酯类等。
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Amphibians recorded were 8 species in 5 families, and reptiles were 13 species in 8 families. Among these, Guenther's frog, Chinese cobra, and Taiwan banded krait are in the wildlife conservation species list of Taiwan.
其中陆栖哺乳类共5科11种,两生类5科8种,爬虫类8科13种,保育类野生动物有贡德氏赤蛙、眼镜蛇、雨伞节(Bungarus multicinctus multicinctus)等3种。
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The development of antibiotics agents and β-lactam antibiotics were briefly described in this paper, both the development of cephalosporins and the characteristics of Cefradine were introduced.
本论文简述了抗生素及β—内酰胺类抗生素的发展概况,详细介绍了头孢菌素类抗生素的进展与第一代头孢菌素类药物——头孢拉定的特点,着重研究了头孢拉定的合成。
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To date, the mechanism of resistance to antibiotics, particularly β-Lactam class of antibiotic, is becoming exceedingly complex.
尤其对临床上使用较多的头孢菌素类、青霉素类等β-内酰胺类抗生素的耐药,已给人类健康造成巨大威胁,急需阐明其复杂的耐药机制。
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The development of antibiotics agents and β-lactam antibiotics were briefly described in this paper, both the development of cephalosporins and the characteristics of Cefradine were introduced. The synthesis of Cefradine was studied particularly.
本论文简述了抗生素及β—内酰胺类抗生素的发展概况,详细介绍了头孢菌素类抗生素的进展与第一代头孢菌素类药物——头孢拉定的特点,着重研究了头孢拉定的合成。
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Physical and mathematical model of calculation in lamination is established.
提出了底板类大体积混凝土结构温度场及温度应力场的分层计算方法,建立了分层计算物理与数字模型,推导了数学计算式,并给出了底板类大体积混凝土温度场计算的解析解,从而为初步估算底板类大体积混凝土结构的温度场及温度应力提供了方便适用的手段。
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This study deals with butterfly diversity and conservation of rare as well as insect fauna species in Baishuijiang Natural Reserve in Gansu Province. The research includes field investigation, observation at certain time and places, captive breeding in experimental area etc. Butterfly species diversity in Baishuijiang Natural Reserve and variation regulation of butterfly diversity in different areas are studied. The relationof butterfly diversity with environmental factors such as vegetation destruction, human disturbance are strenthened in Bifeng Gully. The biology of two rare butterfly species is studied. Meanwhile, this study deals with insect α-diversity and β-diversity in Baishuijiang Natural Reserve and inquire into the mechanisms of ecological control by protecting and recovering vegetation. The research includes field capture with sweeping net, light trap, transect investigation.
在甘肃省白水江自然保护区碧峰沟通过野外调查、定点定时观察、实验地饲养等研究了白水江自然保护区两种珍稀蝴蝶红基美凤蝶和巴黎碧凤蝶的生物学特性,在保护区范围内通过网捕采集研究了蝶类物种多样性和不同区域内蝶类多样性的变化规律;同时在碧峰沟四种不同生境中通过灯诱获得标本,研究了该地区不同生境中的昆虫种类组成及其多样性,分析了决定物种丰富度的关键因子,与蝶类多样性进行了比较分析,并提出了具体的保护措施。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力