高分子聚合物光弹材料与应力冻结 在室温时,施以外加负载,聚合物内主键(Primary Bond)和次键(Secondary Bond)会共同抵 抗形变;温度增加,次键逐渐断裂,仅靠主键承受负载,当温度达到次键几乎都断裂时, 光弹事件及...
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Pertaining to the primary bond market; foreign Banks are not allowed to underwrite domestic financial or corporate bonds.
因为属于初级债券市场,外国银行不被允许对国内的金融或公司债券进行保险。
There are several exemptions, including primary equity and bond issues, spot foreign-exchange deals and deals involving central clearing-houses.
税收也有一些豁免,包括主要股票和债券的发行、即期外汇交易以及涉及中央结算所的交易。
The strong bond a child forms with his or her primary caregiver.
一种儿童与他最初的看护者之间形成的很强的联系。
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