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- 燕山期（J-K）Yanshanian (J-K)
- 华北地台中绝大多数金矿赋存于太古宙地层或侵入于太古宙地层中之燕山期岩浆岩体内。The great majority of gold deposits in North China platform are hosted by the Archeozoic strata or emplaced in the Yanshanian magmatic intrusives of the Archeozoic strata.
- 中国南方印支-燕山期复合盆山体系与盆地原型改造Composite basin-and-range system and reformation of basin prototype in Indosinian-Yanshanian in South China
- 一期installment
- 安全期safe period
- 听一听J, K, L, m, 和NListen for J,K,L,M and N
- 月经期menses
- 燕山Yanshan Mountain
- 经期menstrual period
- 打梅花可引出北手的j至k。A club lead runs up to North rs J-K.
- 第一期first phase
- 期初beginning of period
- 上期previous period
- 质保期quality guarantee period
- 一期工程first-stage construction
- 产期confinement
- 即期current issue
- 首期downpayment
- 即期信用证letter of credit at sight
- 燕山期Phase of Yanshan
