simulation model of tunnel construction process based on petri nets

basic petri net: models, properties and analysis methods

基本Petri网：模型、特性和分析方法

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the web process simulation and optimization methods based on petri net.

基于Petri网的Web过程仿真与优化方法。

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knowledge reason and maintenance system design based on fuzzy petri net

基于模糊Petri网的知识推理与维护系统的设计

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based on petri net's mechanical product development process model and application

基于Petri网的机械产品开发过程模型及其应用

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ancient artifacts were allegedly found in the former home of sir william petrie, aka flinders petrie, who is considered one of the best egyptologists in history.

威廉·佩特是公认的最杰出的埃及学家之一，据说在他之前的家里发现过一些古代文物。

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being one of the best archaeologists of all time, it is hard to imagine that petrie would have hidden the items if they weren't of massive importance.

作为有史以来最优秀的考古学家之一，除非那些古文物极其重要，否则很难想象佩特会一直隐藏它们。

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his date, rita petrie, can be seen in the background, smiling from ear-to-ear.

胜利之吻的照片中还能看到他当时的约会对象丽塔·皮特里在背景中咧嘴而笑。

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this is a figure that i love: bradley, petrie, and dumais.

这是我喜欢的图示：Bradley，Petrie，以及Dumais。

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a mathematical model in the film blowing process is established on the basis of the results pearson's and petrie's investigations.

作者在Pearson和Petrie等人研究基础上，建立了吹膜理论数学模型。

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when i first started talking about the bradley, petrie, dumais example that you just saw

当我第一次谈论到你刚刚看到的Bradley，Petrie，Dumais的例子

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scottish-born dr. fleming was in his lab in 1928 researching the flu virus when he noticed that one of his bacteria cultures was infected with a fungus. most scientists would have tossed the spoiled petri dish in the trash, but not fleming.

1928年，出生于苏格兰的弗莱明博士，正在实验室中研究流感病毒时注意到，有个培养基被不明细菌污染。弗莱明没有像大多数科学家那样，把污染的培养皿直接扔掉，从而意外发现了抗生素。

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observation of activated schwann cells under an inverted microscope: 24 hours later, the activated schwann cells inoculated to petri dish mostly changed from spherical to long shuttle-shape, mutation appeared and most were two-pole shape, fewer were three-pole shape;

激活态许旺细胞倒置相差显微镜下观察结果：接种于培养皿上的激活态许旺细胞24h后大多数由圆球形变成长梭形，有突起，多为双极，也有的呈三极状；

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during the period of culture, phase contrast microscope indicated that masses of cells attached to the surface of fiber of scaffold. when the petri dish was shaken, cell groups drifted irregularly. the adherent rate was ( 21 ± 3.7)%.

培养期间相差显微镜观察见细胞成团地附在支架纤维表面，晃动培养皿可见细胞团漂浮不定[黏附率为（21±3.7）%]，随着培养时间延长无基质产生。

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well, first of all, i mean, this was a study that was done in a, in what we say, the petri dish, so the question is, you know, can it work in our body and doesn't have an effect on skin?

首先，我的意思是，这是我们在皮氏培养皿中所作的研究。所以，问题是，你知道，能够对人体起到作用，对皮肤病有没有功效。

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in petri dish tests, botrytis cinerea metabolites inhibited mycelial growth of rhizoctonia cerealis, cochliobolus sativus, and gaeumannomyces graminis 66.2, 61.6, and 12.5%, respectively.

皿内试验结果表明，灰葡萄孢代谢产物对小麦纹枯病菌菌丝生长抑制率可达到66.2%，对小麦根腐病菌菌丝生长抑制率达到61.6%，对小麦全蚀病菌菌丝生长抑制率为12.5%。

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when the butterfly landed on the petri dish, its wayward flight around the laboratory apparently at an end, it folded up its stained-glass wings& like sails poised for another liberating breeze.

「就在蝴蝶降落在培养皿上，不再绕著实验室随意飞行，合拢彩色玻璃般的双翅，就像静止的船帆，等待另一股启程的微风。」

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a s-p plastic film was prepared by blending and crosslinking starch ( st) with polyvinyl alcohol ( pva), and the biodegradability of the film was determined with astm and quantitative petri dish methods.

以淀粉（Starch）、聚乙烯醇（PVA）为原料制备了共混交联塑料薄膜（S-P），采用ASTM法与培养皿法测定S-P膜材料的生物降解性能。

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generally, there are a couple of elements that one might set down as in a petri dish, and wait to see if some chemical reaction might take place, but not at all sure of what it might be.

一般来说，都有几个元素，作者会把它们像放入培养基中一样培养，等待某种化学反应的产生，但对可能的结果却一无所知。

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when the product arrives at its destination, someone would take the packaging material, print it on an agar plate [ a petri dish] and then grow the bacteria under a pre-arranged growth condition.

当货物到达某一目的地的时候，某些人会打开包装材料，并将它放到一个琼脂板上，然后让细菌在一个提前安排好的环境中生长。

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it's an eco-nightmare, but it's a lot more sanitary than dunking a plate in a bucket of dingy water doubling as a petri dish.

虽说这是生态的噩梦，但却胜于把盘子扔进重复使用的脏水中而成为细菌滋生地。

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