shelf n. (pl. shelves ) 1.擱架;擱料架;擱板。 2.沙洲;暗礁。 3.格;層。 4.【礦物】平層;錫沙礦基巖;【航?!砍辛杭躘材];【地質(zhì)學(xué);地理學(xué)】(大)陸棚,大陸架〔又作 continental shelf〕。 5.擱板狀物;突出的扁平巖石。 6.〔俚語〕(同伙中的)告密者。 off the shelf 1. 現(xiàn)貨供應(yīng) (All of those parts can be purchased off the shelf. 所有這些零件都有現(xiàn)貨供應(yīng))。 2. 〔俚語〕復(fù)活。 be on the shelf 1. 被擱置;束之高閣;無人問津的;廢棄的;閑置的。 2. (因年老)而沒有人雇用;(婦女無人過問)沒有結(jié)婚的機(jī)會(huì)[希望];〔美俚〕退休的,退出體育界的。 3. 〔商業(yè)用語〕推遲的;(計(jì)畫等)緩行的。 4. 〔古語〕在當(dāng)鋪內(nèi)。 5. 〔盜賊俚〕被流放。 6. 〔俚語〕死了。
In the jurassic and cretaceous , generally it was also the shelf sea ( shallow sea ) , but there were lacustrine and lagoonal environments in different parts of the basin 侏羅紀(jì)白堊紀(jì)在總的淺海陸棚環(huán)境下,盆地不同地區(qū)也形成了湖泊和?湖環(huán)境。
In the late permian and triassic , the basin underwent once again a large - scale transgression , and the depositional environment was shelf sea with delta locally 晚二疊世三疊紀(jì)盆地又經(jīng)歷了一次大的海侵, ?淺海陸棚環(huán)境,局部?海陸過渡三角洲相。
These characteristics make it very clear that factors influencing the sea - atmospheric exchange of co2 in marginal continental shelf seas are very much complicated than those in open oceans 上述分布特征表明,陸架邊緣海海一氣二氧化碳交換的影響因素較大洋要復(fù)雜得多。