查询词典 leaf tobacco

According to the requirements of precision conformal dose delivery, the side focused and tongue-groove structure of multi-leaf collimator is determined, and genetic algorithm is utilized to optimize the leaf end shape, which results in the improvement of penumbra size and uniformity.

根据剂量精确适形的要求，确定了多叶组合光栅侧面的聚焦和榫槽结构，使用遗传算法对叶片端面形状进行了优化设计，使端面产生的半影大小和一致性得以改善。

Another importantcause of upper leaf necrosis is leaf enclosure/overlap on the shoot apex.

另一个导致 ULN 的病因是生长点发育被畸形叶片阻止。

Besides playing an apparently key role in wall expansion, expansins have been implicated in an increasing number of processes including cell enlargement, seed germination, root hair formation, root growth, leaf primordium initiation,leaf growth, softening of fruits, fruit abscission and growth of the pollen tube of grasses through the stigma and the style.

目前认为扩张蛋白几乎参与了植物的整个发育过程：除具有增大细胞的功能外，扩张蛋白在细胞生长、种子萌发、根毛形成、根系生长、叶原基形成、叶子生长发育、果实成熟、器官脱离，以及花粉管生长方面起着重要的作用。

By examining a leaf with a scanning electron microscope, both micrometer scale bumps as well as nanometer scale hair-like structures are seen covering the surface of the leaf.

通过用电子显微镜对叶子进行扫描检查，采用块状的千分尺测量和类似头发结构的毫微米测量都能观察叶子表面覆盖的东西。

By examining a leaf with a scanning electron microscope, both micrometer scale bumps as well as nanometer scale hair-likestructures are seen covering the surface of the leaf.

通过用电子显微镜对叶子进行扫描检查，采用块状的千分尺测量和类似头发结构的毫微米测量都能观察叶子表面覆盖的东西。

A total of 83 endophytic fungi strains were isolated from fresh root samples of the plants growing on rocks or shrubs, and with red-purple lower leaf surface or with green lower leaf surface. The isolated strains were identified into 19 genera.

从附生于石上及生于杂木林或灌丛中、叶背绿色及叶背紫红色的五唇兰植株新鲜营养根段中共分离出83株内生真菌，鉴定为19个属，其中包括培养基筛选实验中分离出的30株14属。

According to the survey of Guangzhou region , 95 species , 62 generas , 37families of ornamental red-leaf plants have been proved .76 percents of the red-leaf palnts is arbor .

通过对广州地区乡土红叶植物的调查和文献收集，结果表明，广州地区共有乡土红叶植物有37科62属95种。其中，乔木居多，占76％。

Using SEM-EDX for observing the silicon deposition on leaf epidermal surfaces demonstrated that deposition density of silicon were different on leaf surfaces with the different silicon compounds was different, and effects of these compounds on wax layer also were different.

借助扫描电镜和X—射线能谱观察发现，不同硅源制剂叶面处理小麦后，硅素在叶表的沉积疏密度有一定的差异，同时对叶表的蜡质层影响大小也不同。

The results indicated that: compared with mono-cropping, the mean densities of rice stem borers, leaf roller, rice hoppers and leafhoppers in scale rice-duck farming were decreased by 54.4%, 48.8%, 73.6% and 96.1% respectively, and the rate of diseased plant of sheath blight and rice blast in IF were decreased by 78.9% and 48.5% respectively. Compared with the conventional rice-duck farming, the average densities of rice stem borer, rice leaf roller, rice hoppers and leafhoppers in IF was reduced by 18.2%, 9.5%, 7.0% and 0.82% respectively, and the rate of diseased plant of sheath blight in IF were decreased by 35.5%, unfortunately that of rice blast in IF was increased by 8.0%.

结果表明：规模稻鸭生态种养水稻二化螟、稻纵卷叶螟、稻飞虱和稻叶蝉平均虫量较水稻单一种植分别下降54.4%，48.8%，73.6%和96.1%，纹枯病和稻瘟病病株率分别降低78.9%和48.5%；较常规稻鸭生态种养水稻二化螟、稻纵卷叶螟、稻飞虱和稻叶蝉量分别下降18.2%，9.5%，7.0%和0.82%，纹枯病病株率降低35.5%，稻瘟病病株率升高8.0%。

The significance invested in four leaf clovers pre-dates Christianity, going back to the pagan period, when four leaf clovers were Celtic charms.

而DON的儿时玩伴，现在的傍友关宇龙亦同时入学，处处唯DON命是从，处处怎知因缘际会，与文产生了微妙感情。。。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。