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The suppressing effect of BJ fly ash on ASR expansion of siliceous gravel, zeolitic perlite and silica glass in 1M NaOH solution were studied at 40℃, 60℃ and 80℃ respectively. It is indicted that the suppressing effect of one certain fly ash on ASR expansion various with temperature and the reactivity of aggregate.

通过BJ粉煤灰在40℃、60℃、80℃的1M NaOH溶液中对硅质砾石、沸石化珍珠岩和石英玻璃ASR膨胀抑制效果的研究，发现同种粉煤灰在不同温度下对ASR膨胀抑制效果随温度和集料种类而异。

The effect of C/A and aggregate grading on ASR expansion were evaluated by measuring the expansion of mortar bars with various graded zeolitic perlite and siliceous gravel immersed in 10％ KOH solution at 80℃ respectively.

近年来广泛使用的快速砂浆棒法(ASTM C1260)也仅在养护条件上做些改进，而试体的尺寸、胶砂比和集料级配等均沿用ASTM C227。

The ASR features of mortars with siliceous gravel. zeolitic perlite and silica glass storage at various conditions were examined by SEM/EDS. It was found that ASR had taken place seriously even with high replacement of cement by PFA.

采用SEM／EDS研究了石英玻璃、硅质砾石和沸石化珍珠岩在不同养护条件下ASR特征，发现掺加粉煤灰，甚至大量粉煤灰后，集料仍发生了的反应，有时反应还很严重。

It has been studied that the effect of Beijing fly ash on suppressing the expansion of mortars with siliceous gravel, zeolitic perlite and silica glass immersed in 1 M NaOH solution at 80℃.

集料种类与抑制效果。

The inhibiting effect of aluminous compounds including on alkali-silica reaction in gravel and zeolitization perlite mortars were investigated. The aluminous compounds content, the alkali reactivity of the aggregate and the alkali content will affect the inhibiting effect.

研究了Al3、α-Al2O3等不同的含铝化合物对砾石、沸石化珍珠岩2种集料碱硅酸反应膨胀的抑制作用，讨论了掺量、集料碱活性、碱含量对含铝化合物抑制碱硅酸反应（alkali silica reaction， ASR）效果的影响。

In order to investigate the compound constructed wetland role on the agricultural waster water purification, we built the biological filter with macrophyte of Zizania caduuciflora and bulrush, gravel and sand as their substrates.

研究了茭草、芦苇两种植物，砾石层、粗砂层、细砂层为基质的生物滤池和木炭吸附池构成的复合人工湿地装置净化溶岩地区农田排水中氨氮、总氮和总磷的去除效果。

He had to walk to town, scuffing his boots through the rough gravel, breathing dust when a rig passed, stopping every forty rods or so to wipe the damp off his face.

到镇上的路是用碎石子铺的，粗糙的路面可会刮破他的靴子，有马车经过的时候，飞扬的尘土会让他觉得呼吸不畅。一路上，为了擦拭脸上的湿气，他走走停停。

Central America and Indonesia will be ground up into gravel during the pole shift, disappearing.

中美洲和印尼将会在极移期间被磨得粉碎并消失无踪影。

Meanwhile, most of the gravel trap at the high-speed turn 3 left hander has been asphalted, and nearly 4kms of new tyre barriers erected around the track.

与此同时，大部分的砾石陷阱高速反过来3左手已经铺上柏油，近4千米的新的轮胎屏障的轨道。

Its main products include finished stone products and semi-finished stone products, gravel, paving stone, special shape stone, square stone, flying stone, chocking stone, stone ball, tomb stone, artificial stone, large stone carving, and etc.

其生产产品有：各规格板材成品及半成品、路延石、地铺石、异形石、方块石、飞石、车止石、圆球、墓碑、艺术石、大型石雕等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。