查询词典 provenance

Delt-frong acclivity and shallow lake are a major type of sedimentary sub-facies of the Suining formation of Upper Jurassic, and the provenance is uplifted area of Longmenshan.

洛带气田遂宁组主要为三角洲前缘斜坡亚相和浅湖亚相沉积，其物源区为龙门山隆起区。

This paper studied the preliminary research of biology characteristics of 8 provenance of the Ailanthus altissima Swingle .

对臭椿的8个种源的种子生物学特性变异进行了初步研究，测定指标包括种子形态、千粒重、净度、含水率、发芽率、发芽势、平均发芽速度和活力指数。

There exists a close relation between growth characteristics and wood properties of the provenance. The height and breast height diameter growth of the provenance had a positive correlation with tracheid diameter and annual ring width, and a negative correlation with tracheid wall thickness and wood density.

种源生长与材质性状间存在一定的相关关系，如种源的高径生长与管胞直径和年轮宽之间存在正相关，而与管胞壁厚和木材密度之间却存在一定程度的负相关。

As one aspect of these studies, I do research on issues of ceramic evolution, archaeometry, including provenance study of ceramics and lithics (including petro graphic and geochemical analyses).

他并指导太平洋岛屿和东南亚的考古田野调查。网站里有他研究的岛屿的照片和简介。

In the middle 1980s, two archivist of the United States advocated significances of Provenance Principle.

二十世纪八十年代中期美国档案学者对来源原则的反思逐步达到高潮。

The range of Masson Pine in China can be divided into Southern, Middle and Northern provenance zone by cluster analysis. Nineteen and six superior provenances were respectively selected for pulpwood and building timber, most of which were from Southern provenance zone with some from Middle provenance zone.

根据种源聚类结果，可将马尾松划分为南部、中部和北部3个种源区，并分别纸浆材和锯材筛选出19个和6个优良种源，这些优良种源主要来自马尾松的南部种源区，部分来自中部种源区。

The application of detrital geochemistry to determining tectonic setting and provenance attribute is an important means for basin analysis and also a helpful supplementary or verification method in using coarse detrital rocks to judge the background of provenance.

利用碎屑岩地球化学特征判断沉积盆地的构造背景和物源属性是盆地分析的重要手段，也是对利用粗碎屑沉积岩的组分统计判断盆地源区背景的有益补充和验证。

From the Trias to the Tertiary, provenance area character changed with the age. The Jurassic provenance area is recycle orogenic belt. the Cretaceous provenance area is recycle orogenic belt too. and the Tertiary provenance area is commingle area with recycle orogenic belt and volcano arc orogenic belt.

自三叠纪到第三纪，准噶尔盆地南缘的物源区的性质随时间变化，侏罗纪的物源区为&再循环造山带&，白垩纪的物源区仍为&再循环造山带&，第三纪的物源属于&再循环造山带&和&火山弧造山带&的混合。

The transplant of seedling should be processed after the upgrowth of leaves and root.By using the GC-MS, the chemical composition in root of Valeriana amurensis was analyzed. The avilid components in root of different provenance were similar, and the contents of effective composition in roots were depended on the provenance. Meanwhile, P-Panasinsene was founded in root of Valeriana amurensis for the first time.

用水蒸气蒸馏法提取黑水缬草根部挥发油，并用GC-MS联用仪对其化学成分进行了分析鉴定，结果表明：不同生境、不同产地、不同年份、不同生长方式的黑水缬草根部挥发油的主要化学成分大致相同，人工栽培的黑水缬草有效成分的含量高于野生黑水缬草有效成分的含量，并从中分离出一种在相关文献中未见报道的化学成分—β-人参烯。

For metallogenic environments, the neotectonic movement and climate are 2 most important factors. The neotectonic movement controlled the exposure, weathering and migration of primary provenance, the formation of valleys, the evolution of river systems and topography, and etc. The climate factor played important roles in the whole history of gold placers, especially in the formation of secondary provenance, the sorting and concentration of placer gold, the conservation and regeneration of gold placers, and etc.

在成矿环境方面，新构造运动对砂金矿的形成演化具有重要控制作用，主要表现在促使原生源暴露地表、风化、迁移，控制河谷的发育、水系与地貌的变迁等；气候因素贯穿于砂金成矿全过程，尤其在次生物源的形成、砂金的分选、富集、保存、&再生&等方面发挥重要作用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐