Studies on the reaction between tetralin and coumarin ⅰ. the reaction of coumarin and Dihydrocoumarin in hydrogen donator solvent

Several points can be concluded for the area from this paper study: ( 1) Hydrocarbon mainly occurs in the lower interval of bioclastic limestone and dolomitic limestone ( the special lithologic interval) in Es_1 Member, in which solution pores well developed;

本文研究表明，大中旺地区油气主要分布在沙一段下部的生物碎屑灰岩和云质灰岩段（特殊岩性段），储层溶蚀孔隙发育；

Apparent rocky desertification developed from pure limestone, dolomitic limestone or limy dolomite that have more rate of rocky exposedness, complex and various micro-site, thin and fragmentary soil.

显性石漠化表现为高的岩石裸露率，复杂多样的小生境，浅薄零星的土壤，多为纯质石灰岩和白云质石灰岩或石灰质白云岩发育。

Limestone deposited in the whole inner shelf basin, including the swell belt, excepting a small mass of dolostone or dolomitic limestone could deposit in the center of basin.

包括隆起带上，仅（内）陆架盆地风暴浪基面之下中心位置有少量灰质白云岩和白云岩沉积。

The dolomites in the Carboniferous-Permian strata, dolomitic limestone and limestone are good lithology of ore-bearing;

石炭&二叠系地层的白云岩、白云质灰岩、灰岩是含矿的有利岩性；

Monohydrate dolomitic lime Crystalline dolostone is formed by seepage-reflux dolomitization and burial dolomitization.

单水化含白云石的石灰晶粒白云岩有两种成因：一为回流渗透白云石化；二为深埋藏白云石化。

To paint or coat with or as if with whitewash. monohydrate dolomitic lime

用石灰水粉刷或涂抹

Study on Effects of Dolomitic Lime on Peat pH

白云石粉对草炭pH的影响研究

Analyzing the Geochemistry of C 、 O isotopes and B istope in boracic dolomitic marble, it can be seen that the ore is marine sediment carbonate type, that is, the boron in the layer and in the ore came from the depth.

通过对含硼白云质大理岩C、O同位素及B同位素地球化学进行分析显示了该矿床海相沉积碳酸盐岩的特点，地层及矿体中的硼质同来源于深部。

Since the Cenozoic this mountain has risen and owing to structural jointing, combined with mechanical weathering and surface water erosion, it has gradually become a dolomitic marble "peak forest".

新生代以来，山体上升，在构造节理的主导下，配合物理风化及部分地表流水作用，逐步发展成为白云石大理岩构造峰林。

Practice shows that the application of frequency spectrum characteristics to the evaluation of IP anomalies caused by sulfide mineralized bodies ( chalcopyrite) and graphite-bearing dolomitic marble is effective.

实践证明，利用频率谱定性评价硫化物矿化体（黄铜矿）与含石墨白云质大理岩激电异常源取得较佳效果。

These aren't listed under different headings because they all share the characteristic of being a type of dolomitic marble.

之所以不将这些类型列在不同的标题下面，是因为它们全都具有白云石大理岩类型的特征。

Ore metals are hosted mainly in phlogopite quartz dolomitic marble and breccias.

主要容矿岩石为金云母石英白云石大理岩和矿化角砾岩，其它岩石次之。

There are primarily two genetic type sapphires in current jewelry market, one is of magma genesis and existed in alkali basalt, and the other is of contact metasomatic genesis caused by the intrusion and dolomitic marble.

目前市场上蓝宝石主要有二种成因，即碱性玄武岩中岩浆成因和由侵入体与白云质大理岩接触交代成因。

Shushui rock group remains in Xiyao gneiss, and made up of amphibolite, magnetite quartzite, biotite granulite, calc-schist and dolomitic marble.

涑水岩群残存于西姚片麻岩之中，是由斜长角闪岩、磁铁石英岩、黑云变粒岩、钙质片岩和白云质大理岩组成。

We were busy cutting out paper dolls; but we soon wearied of this amusement, and after cutting up our shoestrings and clipping all the leaves off the honeysuckle that were within reach, I turned my attention to Martha's corkscrews.

当时我们俩正埋头剪纸娃娃玩儿，可是没多久我们就厌倦了这个游戏，于是，我们俩又开始剪树叶，我们把能够到的金银花叶子都剪了下来。

The Italians have an old saying, "Il dolce far niente." The words mean it is sweet, or enjoyable, to do nothing.

…，.意大利人有句老话：“Il dolce far niente.”意思是，什么都不做是很甜蜜，很享受的事。

The Italians have an old saying," Il dolce far niente."

意大利人有句老话：“Il dolce far niente.”

Genetic optimization of reliability design of dog coupling

牙嵌离合器的可靠性遗传优化设计

Suppose you are asked to remember the following list of words: man, bench, dog, desk, woman, horse, child, cat, chair.

假如要求你记住下列生词：男人、凳子、狗、课桌、女人、马、孩子、猫、椅子。

This dog is what is called a bench dog.

这种狗被称为长凳狗。