查询词典 alluvial sand

President Lin Chun-shin pointed out that the educational meaning of knowing coastal geography is to better understand historical evidence about change in geology. We could image the terrain features formed billions of years ago through a variety of telltale signs. Every grain of sand could reveal huge space-time information. This kind of substance and trace evidence could be more reliable than pure theory in terms of strengthening cognition. Taiwan is small, but it has versatile coastal landforms. Hence, living in Taiwan, we are exceptionally lucky to be able to have multi-dimensional learning and accumulate knowledge. We shall pay special attention to the environment and all the subtlety, so we can gain a toehold in Taiwan.

林俊兴董事长表示，认识海岸地理特徵的教育意义在於了解地质变迁的历史证据，我们可以经由种种的迹象来想像数亿年前的地貌，每一粒沙都可以解读出庞大的时空资讯，这种物质迹证比纯粹的理论更能强化认知的可信度；台湾的土地面积虽小，但却有著多样的海岸地形，因此在知识密集的多面向学习上，处在台湾的我们拥有得天独厚的优势，也唯有留心环境，凡事见微知著，才得以安身立命。

The reactivities of SiO〓 on sand surface in different solvents were studied and characterized by fractal theory quantitatively.

2用分形学定量表征了超声空化对天然河沙中SiO〓在不同溶剂中表面反应能力的影响。

Both sand bodies may have superficial resemblances in that both are narrow, linear , and deposited by a river.

两种砂岩体在表面上有相似性，如它们都是河流沉积的狭窄的线状砂体。

The lubricants of casting mold used in green sand transfer coating were investigated under impact pressure casting.

在气冲造型条件下对粘土砂转移涂料的脱模剂进行了研究。

Development of new process technologies can be of interest from manufacturing cost point of view. The current study assesses the feasibility of using green sand mold to cast AZ91 magnesium alloy.

本研究尝试以湿砂模法浇铸AZ91镁合金，由於湿模砂中含有水气，是必须添加抑制剂避免浇铸过程中，镁合金熔汤与湿模砂的水气反应产生氧化镁渣质及氢气。

Vehicles Beijing steel plant foundry workshop to improve the squad LI Jin-chun coupler joist The technology for green mold, for the year 9000 yuan to save the country's water glass sand.

北京二七车辆厂铸钢车间翻砂班长李金春改进车钩托梁作的坯模工艺，一年为国家节约9000元的水玻璃砂。

The additive of correcting metal penetration for green sand mold casting,made from the waste of oil further fabricated——namely DK material,is researched in this paper.

研制了利用植物油深加工后的废料———DK材料作为铸造用湿型砂防粘砂添加剂。

Inhibitors are added in the green sand mold to avoid the moisture from reacting with the magnesium melt, resulting in forming magnesia slag and hydrogen formation.

故而本实验将比较使用不同的抑制剂，包括十二烷基磺酸钠、硼酸、硫磺、与氟硼酸钾等对於AZ91镁合金铸件外观之研究。

As usual, they were having a great time building sandcastles and burying each other in the sand.

如同往常一样，他们开心地堆著沙堡，并互相把对方埋在沙子里。

They love playing in the sand and like most kids, building sandcastles but especially knocking them down.

他们喜欢打沙象大多数孩子，堆沙，但特别敲下来。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。