However, the pattern cost can be high due to the expendable nature of the pattern.

然而由于型模的消耗特性，型模成本可能较高。

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In this paper the gas gap in the expendable pattern casting process was studied and the relation between the gas gap and collapse defect is discussed.

对消失模铸造铸铁件流动前沿的气隙进行了研究，探讨了气隙与坍塌缺陷的相互关系。

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Full-mold casting is a technique similar to investment casting, but instead of wax as the expendable material, polystyrene foam is used as the pattern.

实型铸造是与熔模铸造类似的技术，但它用做型模的消耗材料是聚苯乙烯泡沫而不是石蜡。

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The expendable Vernon Wells gets traded to New York -- where he's hotter than hot.

CNN: 'L' is for losers in L.A. sports

Second, you perpetuate the view of the cerrado as the expendable, scrubby neighbour of the far more glamorous Amazon rainforest.

ECONOMIST: Letters

The abrupt change in business plans made 30% of the employees expendable.

FORBES: Survivor