指示物

Marine gas seepage not only influences the physical properties of the seafloor sediments, but also significantly alters the geomorphology of the seafloor, such as the occurrence of pockmarks, mud volcanoes, authigenic carbonate and cold seep communities on seafloor.

海底天然气渗漏可以指示沉积层中的烃类聚集带，渗漏出的大量气体可能影响全球的气候变化，此外，与海底渗漏相关的浅层气改变了海底沉积物的土工性质，可能对海底工程构成威胁。

Some characteristic ratios suggest the picrites and ankaramites were derived from asthenospheric mantle, and high Os/Ir ratios reflect the involvements of pelagic sediments. Pd/Ir versus Ni/Cu diagram implies that the picrites and ankaramites were not primary magmas, but MgO-high basalts with excess olivines, whereas Pd versus Cu diagram suggests a S-undersaturated primary magma.

一些铂族元素的特征比值指示了苦橄岩和富辉玄武岩起源于软流圈地幔，而高的w/w比值则暗示了源区中有深海沉积物的加入。w/w-w/w图解说明本区的苦橄岩不是原始岩浆，而是原始的高镁玄武岩中有过剩橄榄石的加入，而w-w图解则说明原始岩浆硫不饱和。

The water quality state was evaluated with Shannon-Weaver index and some indicators of periphyton, and results showed that the nutrient type of Daoguanhe Rerservoir was mesotrophic type, and it had a tendency to develop to the eutrophic type.

依据周丛藻类多样性指数及周丛生物某些指示种类评价该水库水质状态，判定为中营养型，并有向富营养级演化的趋势。

A typical profile of Daqiao peatland in the Changbaishan Mountains is chosen for this study. The vertical distribution of major and selected trace elements in the sediments of the profile was determined. Its implications for the climatic change in the Holocene are discussed. The profile was compared with another standard profile named Jinchuan in this area.

本文选择长白山地区典型的泥炭剖面－大桥剖面，探讨其沉积物常量元素和微量元素的垂直分布规律及其对全新世气候变化的指示作用，并与该区另一代表剖面－金川泥炭剖面进行对比。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。