Concrete expansion function is to produce a certain volume expansion after concrete hardening of concrete to eliminate concrete early hardening volume contraction.

混凝土膨胀剂的功能是使硬化后的混凝土产生一定的体积膨胀，抵销混凝土硬化早期产生的体积收缩。

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Based on the principle of volume contraction of freezing, the designing process of riser fitting to the cast steel inserted die with exothermic covering flux has been studied.

根据体收缩原则，研究了适用于模具镶块铸钢件加发热覆盖剂保温的冒口设计工艺。

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Vermiculite adding can compensate for part of the ceramic volume contraction, improve shapes and structure of pore, improve porosity, lower bulk density and improve the rate of powder resistance.

蛭石的添加，可以补偿部分陶粒体积收缩，且能改善陶粒孔型和结构，提高显气孔率，降低体积密度，提高陶粒抗粉化率。

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Through steady price increases, despite year after year of volume contraction net income has continued a seemingly inexorable ascent.

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This is partly because the European handset market already shows some warnings signs of repeating the 2008 summer slump, which later metastasized into a sharp global phone volume contraction by Q4 2008 and Q1 2009.

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Secondly, the ratio of Nasdaq to NYSE volume fell below 100% for the first time since 1998, indicating a contraction of speculative buying.

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