查询词典 oceanic trench

Biogenic silica content was determined in 25 surface sediment samples from the southern South China Sea to study its distribution and its modern oceanic environmental significance, which may provide further scientific evidence for paleoceanography explaination.

对南海南部25个表层沉积样进行了生物硅的测定分析，试图揭示南海南部表层沉积生物硅的分布及其对现代海洋环境的指示意义，以便为古海洋学研究提供进一步的科学依据。

Each unitis of different biotic characters and displays different features of seawater composition during the time. 2 The black unit including a biotic extinction was caused by oceanic anoxic event. Crisis that deepwater keeled foraminifera encountered represents a ferocious anoxia in deep marine environment . Biotic recovery in gray unit reflects gradually improved marine circumstance. What the biotic extinction at the C/T boundary in black unit reflects an environmental mutation, whereas the gradual biotic change characterize the recovery of marine dissolved oxygen environment in a stepwise process. The red unit is the result of oxic deposition and characterized by extremely abundance of foraminiferal faunas, which reflects a high-oxidized marine circumstance. 3 As the most ordinary biotic index in paleoceanography researches, foraminifera represent anexcellent environmental indicator in this paper.

三套岩层表现出不同的生物特征，并指示出当时海水的不同性质。2黑层段是大洋缺氧造成的结果，生物大量灭绝，深层水具旋脊有孔虫的所遭受的危机反映出当时海洋深层水体严重缺氧的特征；灰层段中生物的恢复反映出海洋环境自缺氧事件之后的逐步改善过程，与黑层段反映的C/T 界线处生物绝灭反映的环境突变不同，灰层段生物特征的渐变指示出当时海洋溶解氧环境的恢复也是一个逐步的过程；红层段属于富氧沉积的产物，特征是有孔虫生物的极度繁盛，反映的是一种高氧化性的海洋环境。3有孔虫作为古海洋研究中最常用的生物指标，在本文研究中显示了良好的环境指示性。

Any of several gregarious toothed whales of the genus Phocaena and related genera, of oceanic waters, characteristically having a ''.

鼠海豚一种鼠海豚属小型群集齿鲸，其共同特点是生活于海洋中，生有''。

Any of several gregarious toothed whales of the genus Phocaena and related genera, of oceanic waters, characteristically having a blunt snout and a triangular dorsal fin.

鼠海豚一种鼠海豚属小型群集齿鲸，其共同特点是生活于海洋中，生有钝圆白的吻部以及三角形的背鳍

Porpoise Any of several gregarious toothed whales of the genus Phocaena and related genera, of oceanic waters, characteristically having a blunt snout and a triangular dorsal fin.

Also called sea hog 鼠海豚：一种鼠海豚属小型群集齿鲸，其共同特点是生活于海洋中，生有钝圆白的吻部以及三角形的背鳍也作 sea hog

Australian Customs officers lower their life boat with Sri Lankan refugees on board as the refugees are transported from Oceanic Viking, an Australian Customs Service patrol ship, to an Australian-funded detention center in Tanjung Pinang, off the coast of Kijang, on the Indonesian Island of Bintan file photo

澳大利亚海关人员降低他们与斯里兰卡难民生活在船上的难民船从海洋维京，澳大利亚海关巡逻舰，运到澳大利亚，在丹戎槟榔资助拘留中心，离海岸的基姜的一辆，在印度尼西亚的爪哇岛民丹岛

The mathematical analyses show that optimal temperatures of Paraconchoecia decipiens,P.echinata,P.spinifera,Conchoecia magna,P.oblonga and Porroecia porrect are over 25℃,and their optimal salinity over 34,mainly distributing in waters of Kuroshio,the Taiwan Warm Current and the Taiwan Strait,which all make the species qualified as oceanic tropical water species.

腹突拟浮萤、猬刺拟浮萤、棘刺拟浮莹（P.spinifera）、长拟浮萤、大浮萤和葱萤等是热带大洋种，这些种主要分布在黑潮暖流、台湾暖流和台湾海峡水域。

During these events, the potassic volcanic rocks of Oulituozi were produced during extension stage of the rift with subsequent fractional crystallization and derived from basaltic magma. The genesis of the volcanic rocks possibly had a close relation with partial melting of the subducted slab of Pacific Plate oceanic crust.

欧利坨子富钾质火山岩的形成是裂谷期岩石圈伸展作用的产物，是玄武质岩浆经过大比例分离结晶作用的产物，可能与晚中生代太平洋板块俯冲残片的部分熔融有密切关系。

Kamafugite is an ultra potassic volcanic rock occurred in oceanic and/or continental settings, especially in continental rift. Kamafugite is also an igneous rock outcropped very rarely in the world.

钾霞橄黄长岩是一种产于大洋和/或大陆环境，尤以大陆裂谷最为多见的超钾质火山岩，也是世界上出露最少的火成岩之一，目前世界只有少数几个国家和地区有这类岩石的报道。

Any of several species of gull -like oceanic birds in the family Procellariidae.

至少，这只不起眼的黑海鸥临死前那一声尖叫恢复了她的理性。

He studied their excrement for evidence of livestock hair.

他为家畜毛的证据研究他们的粪便。

Loneliness is not grounds for deportation, deportation of the people are not all lonely people.

寂寞也不是放逐的理由，放逐的人也并不都是孤独的人。