查询词典 sediments

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。

To observe the abnormal morphs of the trophozoite of Giardia lamblia in vitro axcenical cultivation. G. lamblia trophozoites were cultivated axenically in modified TYI-S-33 medium. Sediments, which contain the trophozoites, on the bottom of the culture tubes were collected at different time after inoculations.

目的 观察体外纯培养的蓝氏贾第鞭毛虫滋养体的异常形态，方法用改良TYI-S-33培养基培养贾第虫，在接种后不同时间取培养管底部虫体涂片，Giemsa's染色，在显微镜下观察虫体形态并照相。

Sediments with particle size less than 0.15 mm and larger than 0.55 mm are more suitable for the survival of T. tubifex. The former had higher organic matter content, while the latter had larger pore size in the particles, which allows the T. tubifex to move and obtain more food from the particles.

颗粒粒径对颤蚓迁移的影响主要是由颗粒中有机质含量而非粒径本身决定，粒径小于0.15mm和大于0.55mm的颗粒适宜颤蚓生存，前者有机质含量高，后者则颗粒间空隙大，颤蚓可快速通过并获取更多的食物。

Sediment magnetic and geochemical results have been obtained from the top 60 meters of lacustrine sediments recovered in two cores from Tule Lake in northern California.

这里提供了加州北部Tule湖湖成沉积物沉积磁性和地球化学分析结果，这些沉积物是从湖底60米深处的两个钻芯中采集的。

I think these sediments are merely a pile of loose and unconsolidated particles .

但是这些沉积物仅仅是一堆松散的，未固结的颗粒物质，它们是怎么变成固结和坚硬的岩石的呢？

They can also be transmitted through thick deposits of unconsolidated sediments.

它们也可能通过未固结沉积物的沉积层。

In addition,the timing of the potassic magnesianrich dacites provides a good constrain on the minimum depositional age of the underlying Habahe group and suggests the sediments of the group deposited before the early Devonian.

此外，该套火山岩的形成时代制约了其下覆的哈巴河群沉积上限，显示哈巴河群沉积于早泥盆世之前。

A physical model, consisted of a tank with five types of unscreened sediments involving gravel, medium sand, fine sand, silt, and clay, was constructed at a pilot scale in the laboratory.

石油烃污染地下水是一个普遍而严重的环境问题。

Objective: To compare the result of the Sysmex UF-100 automated urinalysis analyze and microscopic examination of urinary sediments.

目的：对尿液沉渣标准化检查与UF-100流式尿沉渣全自动分析仪的检测结果进行比较并评价。

Objective To evaluate the disturbing factors of the material ingredients in urinary sediments on UF-100 automated urinalysis analyzer.

目的探讨尿沉渣中的有形成分对UF-100全自动尿沉渣分析仪结果的干扰因素。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。