令人惊讶的是，本土物种的灭绝很少归因于外来物种的竞争。
Surprisingly few extinctions of indigenous species can be attributed to competition from introduced species.
由于引入了非本地的捕食者和病原体，已经有许多本土物种灭绝的记录，证据确凿。
There have been numerous well-documented extinctions of indigenous species caused by the introduction of non-indigenous predators and pathogens.
如紫色花的亚洲牡丹和草莓番石榴等外来物种，威胁着如无刺玫瑰和树蕨等脆弱的夏威夷本土物种。
Invaders such as purple-flowered Asian melastome and strawberry guava threaten delicate Hawaiian natives such as thornless roses and tree ferns.
本土物种和外来物种都有可能成为入侵物种，因此当它们开始失控时，我们必须对它们进行监视和控制。
Both native and exotic species can become invasive, and so they all have to be monitored and controlled when they begin to get out of hand.
本文介绍其部分出土物。
结果表明，掺粉煤灰的高性能混凝土物理力学性能优异；
The result shows that normal concrete with low strength after been high-performed is of good high performance.
黄土粒度粗，不稳定重矿物含量高，表明西宁黄土区距黄土物源近。
The grain size of the loess is coarse with high contents of unstable minerals, indicating that the Xining loess material source approximate to the loess region.
研究表明，这类夹层及其粘土物质系顺碳酸层间溶蚀-交代的产物。
The research have proved that the genesis of this kind of clay and intercalation is a solution- replacement products in carbonate rocks.
根据实际工程资料建立黄土物理力学数据库，用BP算法建立预测模型。
The database should be created based on practical engineering, and a prediction model, built with the BP neural network.
研究了建筑垃圾再生原料的组成与用量对再生混凝土物理力学性能的影响。
Here is a study on the effects of the composition and amount of the reprocessed raw material from building waste on the physical and mechanical performances of recycled concrete.
本文主要介绍岩土物理力学指标统计计算机程序的功能、特点、主程序流程。
The subject of this article is to introduce the function, chacateristic and the process of the program designed by us.
由坡面流能量、能量损失、传递及其平衡得出了坡面流对坡面上土物的拖曳力。
It can get the drag force according to flow energy, energy loss, energy transfer and its balance.
还有白松疱锈病菌，是西伯利亚本土物种，1920年在太平洋西北部首次发现。
And white pine blister rust, a native of Siberia first seen in the Pacific Northwest in 1920.
目前，至少15个国家受到外来物种的入侵，这种入侵是以牺牲本土物种为代价的。
At least 15 countries now host colonies, which frequently prosper at the expense of native species.
生态学家在一篇评论中表示，本土物种和外来物种之间的区别正逐渐显得不那么重要。
In a commentary, ecologists say that the native-versus-nonnative issue is becoming a moot question.
介绍了J 85混凝土速凝剂的性能特点，阐述了掺加该剂的混凝土物理力学性能。
Performance characteristics of J85 Conerete Accelerator is explained and mechanical properties of tEe concrete admixed with it is reviewed.
论文以实物为基础，其中以考古出土物为主，传世品及古代文献中收录者也稍有提及。
The present paper based on the practicality, which is mainly of archaeological discovery, goods handed down and mentioned in ancient literatures.
相比之下，犹如所料，入侵性较弱的外来物种的武器库至少在某些本土物种那里也存在。
The more benign aliens by contrast were predicted to have arsenals also found in at least some native species.
第一个推测是有关军事方面的，其原因就是整个窖藏的出土物品并不是一个战利品的集合。
The first clue is its military character, which suggests that the assemblage was not a grab bag of loot.
已经在伦敦各郡建立群居点的和尚鹦鹉因为被认为威胁作物、电网及本土物种将受到清除。
Monk parakeets, which have established colonies in the home counties, are to be culled because they are alleged to pose a danger to crops, the electricity grid and native species.
岩土物理力学参数统计计算是一项繁琐而又重要的工作，手工统计易出错，且难于校核。
Statistic of the physics and mechanics index of soil and rock is a tedious and important work. Statistic by handiwork is easy to make mistake and is difficult to be checked.
从旁边护土物中出土的石水盆，原是在地窖中央被保存的。石水盆下的土石，仍未被探勘。
The stone water basin freed from the surrounding retaining structure as it was preserved at the centre of the crypt. The fill under this basin was still unexplored.
红粘土的粒度分布表明，东亚冬季风环流而非北半球西风环流控制着红粘土物质的堆积过程。
The size distribution of red clay showed that the accumulation of red clay was controlled by East Asian monsoon circulation rather than westerly circulation.
景观设计遵循有机的形式，岸边使用了当地植被，如睡莲，芦苇等本土物种来实现重新自然化。
The design of landscape follows organic forms. The shores are re-naturalized using local vegetation such as water lilies, reeds and other indigenous species.
从墓葬形制及出土物分析，该墓葬的主人可能为汉人中的一般平民，墓葬年代大致为辽代中期。
According to the function and the relics, it can be supposed that the owner of this tomb might be a Han common people, and the tomb was buit in about middle Liao Dynasty.
介壳虫的蔓延会让一种该地区的本土物种感到高兴：热带火蚂蚁。这种蚂蚁喜食介壳虫含糖的排泄物。
The spread of scale insects would have delighted one of the region's native species: the tropical fire ant, which is fond of dining on the sugary excrement of scale insects.
本试验采用不同改土物料与化肥配合施用对人工建植草地苜蓿和羊草生物产量和品质影响进行了研究。
This experiment investigated the effect of combining application of different ameliorative material and fertilizer to the biological yield and quality of alfalfa and Leymus chinensis.
厨房和洗手间内都有白色亚光无柄嵌板橱，其颜色与混凝土物形成对比，并实现了储存空间的最大化。
Storage is maximized throughout the kitchen and bathroom with the use of matt white handleless panels that contrast with the materiality of the concrete.
黄土高原半干旱的气候条件、稀疏的植被和疏松易蚀的黄土物质，是该地区高含沙水流形成的自然地理因素。
Semi arid climate, poor vegetation cover and highly erodible loess can be regarded as the main natural factors responsible for the formation of hyperconcentrated flows in the Loess Plateau, China.
黄土高原半干旱的气候条件、稀疏的植被和疏松易蚀的黄土物质，是该地区高含沙水流形成的自然地理因素。
Semi arid climate, poor vegetation cover and highly erodible loess can be regarded as the main natural factors responsible for the formation of hyperconcentrated flows in the Loess Plateau, China.
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