Besides the product has low specific gravity, high strength, good thermal stability, and low thermal conductivity.
产品容重低，强度及热稳定性高，导热系数小。
The results show that fly-ash is of low specific gravity, low compressibility, high strength and high permeability etc .
结果表明粉煤灰具有质轻、压缩性低、强度高、渗透性好等特点，粉煤灰的压实干密度对含水量不是很敏感。
Safety seal: through the incorporation of a low specific gravity barrier fluid at a higher pressure than the pumped fluid, it guarantees a no leakage sealing action.
安全密封：通过并入比泵流体压力更高的低密度阻隔液，保证了没有泄漏发生。
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