查询词典 limestone

1It was discovered just after Darwin release his theory of evolution. It appear so soon that people doubt advents forged this fossil in order to evident Darwin's theory. 2the feather on the limestone of the fossil is so clear and perfectly formed that people doubt it is a artificial one. 3there is a split on the fossil, and the two pieces did not join together tightly.

由 1980s，某知名历史学家提出，原因有三： 1他怀疑这个化石是达尔文伪造的，目的在支持他的&鸟类从爬行动物进化而来&的理论； 2化石的纹理过於清晰，经过千百年历史，鸟的羽毛依然可见，这很不正常； 3化石有两部分组成，然而这两部分不能完整的拼合在一起，可见这是假造。

Reefs, reef-mounds and lime mud mounds are all carbonate buildups, and the reefs and banks are important targets for petroleum exploration The reefs, banks and mounds should be divided from each other not only in theory, but also in exploration practice, because of so many differences in sedimentary compositions, fabrics, environments, distribution in time and space, and the characteristics of petroleum geology If the original reef or bank itself was fine reservoir rocks, then it would become a better reservoir after the reservoirconstructive diagenesis The formation of a high quality carbonate reservoir is controlled by two factors: the sedimentary microfacies and the reservoirconstructive diagenesis The first is the basis for the formation of a high quality reservoir, and with the high energy reefbank facies as the best; the latter includes the cataclasis, the dolomitization and the karstification The dolomitization and karstification are the best for the formation of a high quality reservoir The karstification has the widest distribution, profoundest effect, and plays a vital role in the high quality reservoir forming The karst types are quite rich in the limestone reef or bank reservoir, including synsedimentary karst, penesedimentary karst, supergene karst and hydrothermal karst, and so does the dolomitization reef or bank reservoir The formation mechanism of synsedimentary karst and penesedimentary karst is related to the short time exposing and leaching of the cyclical highfrequency shallowupward sequence when the reefs or banks are forming The supergene karst is controlled by the exposing and leaching of tertiary cyclic sequence type I interface after the reefs or banks forming Thus, there developed a great deal of secondary corrosion pores, corrosion fractures and huge caves besides some original pores remained in the reef and bank reservoir Scarcely there are any original effective pores in reefmounds and lime mud mounds, especially in senkes among mounds, but secondary pores could be formed by karstification, and there would likely develop source rocks with high organic abundance

礁、礁丘、丘同属碳酸盐建隆，礁、滩是重要勘探目的层。但各自在沉积组分、组构、环境和时空分布，以及油气地质条件上迥然不同，因而无论从理论还是勘探实践上，都有必要将其各成体系划分开来。礁滩自身为好储集岩，当建设性成岩作用叠加后可形成好的储层。碳酸盐岩优质储层形成，主要受沉积微相与建设性成岩作用两大因素控制。前者是基础，并以高能的礁滩相带为最好；后者主要包括破裂、白云石化和溶蚀三大类，并以白云石化或溶蚀为最优，其中的溶蚀分布最广泛、影响最深刻而对优质储层形成起决定性作用。礁滩储层中的古岩溶类型最为丰富多彩，包括同生期、准同生期、表生期和埋藏期热流体岩溶的所有类型，白云岩化礁滩体也不例外。其中，同生准同生期岩溶的形成机制与礁滩沉积时高频层序旋回向上变浅序列的短暂暴露淋溶有关，表生期岩溶则受控于礁滩沉积后三级层序旋回Ⅰ型界面的暴露淋溶。由此，导致礁滩储层中除了可以也是唯一保存原生孔隙外，还发育了次生溶蚀孔洞缝和大型溶洞。礁丘、灰泥丘尤其是丘间洼地中发育高有机质丰度烃源岩；它们自身没有有效的原生孔隙，但岩溶作用可以形成次生孔隙。

A caver overlooks razor-edged limestone pinnacles sharp enough to kill a man in Borneo's Tardis Cave.

一位探险者俯瞰剃刀锋口石灰石山顶利刃足以杀死一名男子在婆罗洲的Tardis洞穴。

A caver overlooks razor-edged limestone pinnacles sharp enough to kill a man in Borneo's Tardis Cave.

一个洞穴探测者俯看有刀刃的石灰石小尖塔锐利能够杀一个男人在波罗州的Tardis洞穴。

A caver overlooks razor-edged limestone pinnacles sharp enough to kill a man in Borneo's Tardis Cave.

一位探察洞穴的人俯看剃刀边石灰岩小尖塔锋利的足以杀死一名男子在婆罗洲的Tardis洞穴。

Photo Gallery: Cave Exploration A caver overlooks razor-edged limestone pinnacles sharp enough to kill a man in Borneo's Tardis Cave.

一位探察洞穴的人俯看剃刀边石灰岩小尖塔锋利的足以杀死一名男子在婆罗洲的Tardis洞穴。

Photo Gallery: Cave Exploration A caver overlooks razor-edged limestone pinnacles sharp enough to kill a man in Borneo's Tardis Cave.

一位洞穴探险家俯瞰剃刀刃石灰石顶端，夏普足以杀死一名男子在婆罗洲的tardis洞穴。

Limestone can not be erosion by cavitating water jets on the condition of the most pump pressure, but sandstone were greatly erosion.

空化水射流在本实验设备能达到的最高泵压条件下无法冲蚀破碎石灰岩，而对砂岩却表现出巨大的冲蚀能力。

At a lower temperature (≤1600℃), CaO clinkers were fabricated using high grade limestone with Al_2O_3 as additive.

在较低温度下(≤1600℃)，将添加Al_2O_3的高纯石灰石在不同煅烧温度下制得了CaO烧结熟料。

This characteristic has been shown to be particularly true in limestone areas where cracks and crevices occur.

在有断裂和裂隙的石灰岩区域，这种物性表现得特别清楚。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。