Collis C M, Hall R M. Gene cassettes from the insert region of integrons are excised as covalently closed cirques ［J］.

特異性整合是將耐藥基因盒整合到交換位點(diǎn)attI和attCaa片黄色视频，耐藥基因盒可以自由的被整合或切除。

The glacial heritages of this period interspersed most wildly, such as glacial valleys, cirques, horns, knife-edge crest, morainic boulder, end moraine bars, lateral moraine bars, morainic platforms, morainic hills, morainic lakes and glacial lakes, they are the most magnificent glacial landform heritages in the geopark.

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Based on the theory of hanging on laneway roof with roof bolt and taking the bolt as base point, this new preceding support can work in the free space on the laneway roof, allowing other equipments such as the entry-driving machine work at the same time, thus improving the utilizing efficiency of the laneway. On the cirques track of bolts, its three groups of claw, which are driven by hydraulic force, work as fulcrums to one another to push the support move forward.

基于頂板錨桿懸掛理論观看黄色网站啊啊，以錨桿為基點(diǎn)，采用自制圓形梁為執(zhí)道强奸高潮视频，以液壓力驅(qū)動(dòng)3組機(jī)爪互為支點(diǎn)實(shí)現(xiàn)超前支架在巷道頂部空間的邁步前移欧美日韩性爱视频一区，采用具有頂板適應(yīng)性的變運(yùn)動(dòng)方向平行四邊形機(jī)構(gòu)作為超前支護(hù)機(jī)構(gòu)，來(lái)實(shí)現(xiàn)超前支架的支護(hù)作業(yè)黄色网站视频能看。

Jungfraujoch is the most glaciated part of the Alps, containing Europe's largest glacier and a range of classic glacial features such as U-shaped valleys, cirques, horn peaks and moraines.

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Jungfraujoch is the most glaciated part of the Alps, containing Europe's largest glacier and a range of classic glacial features such as U-shaped valleys, cirques, horn peaks and moraines.

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compound cirques：復(fù)合冰斗

復(fù)合沖積扇 compound alluvial fan | 復(fù)合冰斗 compound cirques | 復(fù)合海岸 compound coast