壳
- 与 壳 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The result shows that the blend membranes have good mechanical properties and can conquer the weakness of silk membranes,stiffness and brickleness.
采用共混法制备丝素-壳聚糖共混膜,并测定其力学性能,结果表明各种配比的丝素-壳聚糖共混膜均具有良好的机械性能,能够克服纯丝素膜刚而脆的弱点。
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Silk fibroin-chitosan blend membranes were prepared by mixing method and the mechanics of blend membranes was measured. The result shows that the blend membranes have good mechanical properties and can conquer the weakness of silk membranes, stiffness and brickleness.
采用共混法制备丝素-壳聚糖共混膜,并测定其力学性能,结果表明各种配比的丝素-壳聚糖共混膜均具有良好的机械性能,能够克服纯丝素膜刚而脆的弱点。
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The genus Calophyllum of the Guttiferae family is a kind of everygreen plant, mostgrowing in the damp tropic jungle.
红厚壳属植物为藤黄科,藤黄科植物有40余属,1000余种,其中红厚壳属植物约有200余种,主要生长在潮湿的热带丛林中,是一种常青木。
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The results were as follows: under 1.5% and 2.5% concentration NaCl stress, Calophyllum inophyllum L. seedings grew more quickly, chlorophyll content, CAT and SOD activity were all increaseing; then along with the content increasing, Calophyllum inophyllum L grew more slowly, chlorophyll content decreased, proline and MDA content increased, CAT, SOD activity increased distinctly, POD activity changed non constat. Calophyllum inophyllum L.
结果表明:1.5%和2.5%浓度的NaCl胁迫时,红厚壳幼苗生长更快,叶绿素含量、CAT和SOD活性均增加;之后随着浓度的升高,红厚壳生长减缓,叶绿素含量减少,脯氨酸和丙二醛含量显著增加,CAT、SOD活性显著下降,POD活性变化不明显。
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Based on examinations of type specimens housed at PE, lectotypes for five names of Chinese taxa in Fagaceae, Papaveraceae, Capparidaceae and Cruciferae are here designated under Article 8.1, 9.9, 9.10 and 37.2, Recommendation 9A.2 and 9A.3 of the International Code of Botanical Nomenclature, because the types were respectively indicated by reference to a gathering that consists of more than one specimen, or more than one gathering were simultaneously designated, without indicating the type in the protologue.
摘要查阅保存于中国科学院植物研究所标本馆的壳斗科、罂粟科、山柑科和十字花科植物的模式标本时,发现有5个植物名称的模式均多于1份标本,或同时引证1号以上的标本而没指定模式,根据《国际植物命名法规》规则8.1、9.9、9.10和37.2,以及辅则9A.2和9A.3的精神,对这些名称做出后选模式指定。关键词壳斗科;罂粟科;山柑科;十字花科;后选模式
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Cook-off which is caused by hot bore surface and other parts is one of the critical problems for caseless rifles.
对无壳弹/枪这一特殊的武器系统,发热所带来的突出问题是无壳弹的自燃问题。
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Completely caseless ammunition was also studied on several occasions, notably the German 4.7 mm designs, but issues with reliability and "cook off" were never completely solved.
完全无壳的彈藥也有一定的研究,著名的有德国设计的4.7毫米无壳弹,但是其可靠性和自燃的问题从来没有能够彻底解决。
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The intersupplemental relation and separate function of these models are discussed, and the theoretical support is provided for developping the general CAE system on the launch dynamics of auto-rifle. The dynamic matching relation for caseless rifle is also discussed and the dynamic characteristics on new type caseless rifles with different constructure parameters are studied.
讨论了各模型之间相互补充的关系和各自的功能,为发展自动步枪发射动力学通用CAE系统提供理论支撑;本文还讨论了无壳弹枪的动力匹配关系,分别对不同结构参数的新型无壳弹枪的动力学特性进行了研究。
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Base on the foregoing studies on combustion performance, mechanic properties and heat-resistance performance of LOVA propellants, the energetic binders suitable for caseless bullet propellant charge and the coating procedures are obtained and the charge structural designs of caseless bullet propellants are conducted. Results of gun firing tests show the ballistic performances of caseless bullet propellant charge could meet with the prerequisites.
在燃烧性能、力学性能和耐热性能研究的基础上,选择了适用于无壳弹密实装药用含能粘结剂,确定了涂覆工艺条件,结合无壳弹装药结构设计,进行了弹道试验,试验结果基本接近或达到了设计目标。
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The result of stress analysis shows that temperature load induced remarkable thermal stress, and under pressure and temperature load, the distribution of the stress depend on the thermal stress. The most dangerous casse is not the steady operating case, but the transient case at the moment that the shell-side fluid is just shut down, but tube side pressure load and thermal load still retain.
通过强度分析表明,温度载荷对管板造成了较大的热应力,而且在温度载荷及压力载荷共同作用的工况,热应力决定了整个管板系统的应力分布;本题研究的管板的危险工况不是发生在管程载荷、壳程载荷和温度载荷同时作用的正常操作工况下,而是发生在可能出现的壳程压力先停(管程载荷和温度载荷同时作用)的瞬态工况下。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。