查询词典 Elm

The selective response of three chafers to different plant leaves The number of beetles caught by castor-oil plant leaves were obviously more than that of control filter paper, cotton, sweet potato, soybean, Abutilon theophrasti Medic, peanut and elm leaves.

铜绿丽金龟和暗黑鳃金龟对花生、榆树、大豆的取食量都比较大。该结果说明，金龟甲对蓖麻的趋向行为可能不是为了取食或者说不单单为了取食，是否具有引诱其交配、产卵、栖息等行为，都是疑点，需要进一步研究。

This text passes correctly elm two of Daqing oil field is united --One Song unite person who bury oil pipeline scene to live in environment survey and study, is it take a sample test , environmental corrosivity survey , corrosivity measuring of pipeline and assess of soil to excavate, is it cause person who bury pipeline antiseptic layers of invalid main factor to find out , confirm the environmental grade of corrosion of soil according to environmental comprehensive physics and chemistry index of soil, grasp pipeline antiseptic invalid law of layer , study antiseptic layers of resistivity decay law and to influence that negative pole protect, is it suitable for person who bury antiseptic layer of life-span of the pipeline calculate formulae and actual effect criterion model to propose on the basis of this text, illustrate and simply analyse oil field long to fail person who bury antiseptic layer of surplus ability to work of the pipeline, unite for elm two --One Song unite pipeline antiseptic maintenance of layer , is it put forward science rational suggestion to change.

本文通过对大庆油田榆二联——宋一联埋地输油管道所处环境的现场调研、开挖取样化验、环境土壤的腐蚀性勘测、管线的腐蚀性检测和评估，找出引起埋地管道防腐层失效的主要因素，并根据环境土壤的综合理化指标确定该段环境土壤的腐蚀等级，掌握管道防腐层的失效规律，研究防腐层电阻率衰减规律及其对阴极保护的影响，在本文的基础上提出适用于埋地管道防腐层寿命计算公式和失效判据模型，例证和浅析油田长输埋地管道防腐层剩余工作能力，为榆二联——宋一联管道防腐层的维修、更换提出科学合理的建议。

I love elm, but also love the character of elm, admire its strong will.

我爱榆树，更爱榆树的性格，佩服它那顽强的意志。

Cao Yushu total right to build wells at coal mine near a period of construction work to be fully affirmed the work of the next stage of requirements: First, be aware of Coal Mine Safety Elm Well the importance of pre-production and further enhance the sense of responsibility and sense of mission , we must bear in mind the "second pioneering" historical mission, to take more effective and more practical methods of work, the scientific arrangement of the work, carefully organize construction work, the remaining project duration inverted one by one to ensure that mine pre-production schedule; second, is necessary to study the construction process to solve difficulties and problems arise, focus on strengthening the soft rock supporting and construction process of research, trial and error comparison, mine worked out well for Elm soft rock supporting a new road.

曹总对榆树井煤矿筹建处近一时期的矿井建设工作予以了充分肯定，并对下一步的工作提出了要求：一是要认识榆树井煤矿安全试生产的重要意义，进一步增强责任感和使命感，要牢记肩负的"二次创业"历史使命，采取更加有效、更加务实的工作方法，科学安排各项工作，精心组织施工，对剩余工程逐项倒排工期，确保矿井按期试生产；二是要及时研究解决施工过程中出现的困难和问题，重点加强对软岩支护和施工工艺的研究，反复试验比较，摸索出适合榆树井煤矿软岩支护的新路子。

Result With young elm forest-pumpkin strip intercropping, since the branch tendril covered the gap between pumpkin planting-ditches and elm forest land, the soil moisture was remarkably increased. And the water use efficiency under intercropping increased by 23.7%-163.3% compared with the sole cropping. Elm-pumpkin strip intercropping changed the sequential succession trend of the grasses growing in the gap of the pumpkin planting-ditch, annual grasses became the dominant vegetation, and the feeding nutrient matter content and yield of the annual grasses increased significantly.

榆树幼林与南瓜间作后，瓜蔓覆盖地面，显著提高了南瓜行间和榆树林地的土壤水分含量，林－瓜间作地水分的利用效率较单作提高了23.7%~163.3%；间作改变了南瓜行间杂草群落自然演替的方向，一年生杂草成为优势物种，其饲用营养物质的含量和产量较林带间杂草显著提高。

Common veneer color from shallow to deep, with cherry, maple, white elm, red elm, ash, white oak, red oak, teak, pear, safflower pear, walnut, white shadow wood, red shadow of the wood , red sandalwood, ebony, etc.; two synthetic veneer.

常见木皮的色彩从浅到深，有樱桃木、枫木、白榉、红榉、水曲柳、白橡、红橡、柚木、黄花梨、红花梨、胡桃木、白影木、红影木、紫檀、黑檀等；二是合成木皮。

But that died with the Dutch Elm disease that I guess struck all the elm trees.

但是那棵榆树最后死于荷兰榆树菌，我想当时所有的榆树都曾经因为这种病菌而遭殃。

Portland maintains at least 20,000 trees today, including about a hundred elm trees that survived a 1960s outbreak of Dutch Elm disease.

波特兰保持至少20000树木今天，其中包括大约一百种榆树成活树木20世纪60年代爆发一－荷兰榆树病。

Portland maintains at least 20,000 trees today, including about a hundred elm trees that survived a 1960s outbreak of Dutch Elm disease.

今天波特兰市维修至少有20000棵，其中包括大约100棵榆树的生存因为20世纪60年代曾经爆发荷兰榆树病。

Portland maintains at least 20,000 trees today, including about a hundred elm trees that survived a 1960s outbreak of Dutch Elm disease.

波特兰维护在今天至少存活20000棵，在20世纪60年代一种荷兰榆树病的爆发后保护工作使包括100种榆树生存下来。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。