Material balance equation of gas reservoir is an important method in gas reservoir engineering.
气藏物质平衡方程序，是气藏工程中的重要方法。
Mr. Jones: We usually require a deposit of 10% and the balance in cash against material receipt.
琼斯先生：通常我们先收10%的定金，余款在收到货物时用现金付清。
Established customs account, controlled the balance of customs contract, material account and the finance account.
建立海关帐。合同帐、物料帐、财务帐之平衡。
Established customs account, controlled the balance of customs contract, material account and the finance account.
建立海关帐。合同帐、物料帐、财务帐之平衡。
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