查询词典 extinction

There is a case of an oysterlike bivalve that evolved a more and more spiraled shell until, just before extinction, the valves could barely open.

这里有个例子，一种牡蛎状双壳类，进化出越来越趋螺旋状的外壳，直到该物种灭绝，其外壳已几乎不能打开。

There is a case of an oysterlike bivalve that evolved a more and more spiraled shell until, just before extinction, the valves could barely open.

这里有个例子，一种牡蛎状双壳贝，进化出越来越趋螺旋状的外壳，直到该物种灭绝前，其外壳已经几乎打不开了。

There is a case of an oysterlike bivalve that evolved a more and more spiraled shell until, just before extinction, the valves could barely open.

而且为什么灭绝发生在同一族群，仿佛是劣质基因的责任？

There is a case of an oysterlike bivalve that evolved a more and more spiraled shell until, just before extinction, the valves could barely open.

这里有个例子，一种牡蛎状双壳类软体动物，进化出越来越趋螺旋状的外壳，这种进化直到该物种灭绝前未停止过，其外壳已几乎不能开合。

There is a case of an oysterlike bivalve that evolved a more and more spiraled shell until, just before extinction, the valves could barely open.

而且为什么灭绝发生在同一族群，仿佛是拜劣质基因所赐似的？

Meteorite impact is one of the important agents that caused the palaeoclimatic environment catastrophe and the extinction and rebirth of creatures in the geologic history during the evolution of planets and satellites in the solar system, and it is also the very common event during the nonage evolution of the earth.

陨星撞击是太阳系各行星及卫星演化、地质历史中导致古气候环境灾变与生物灭绝和新生的主要营力之一，在地球演化早期是一种较为普遍发生的事件。

The results of slice observation by microscope show that the penninite has thumb blue, brown and violet anomalous interference colour, parallel or proximal parallel extinction.

通过在显微镜下薄片观察发现，叶绿泥石具有靛蓝色、锈褐色和紫色异常干涉色，近平行消光。

In the submodel, the reflection coefficient of the canopy changed with the sine of the solar angle and the relationship between the extinction coefficient for photosynthetically active radiation and PDT was quantified.

模型引入高斯积分法简单有效地计算冠层每日的总光合量，并考虑了冠层辐射反射率的日变化及消光系数随生理发育时间的变化，使模型对冠层辐射吸收与光合作用的定量更加准确。

GuangxiIndustry Association, the Senior Engineer of the State Council, who have made outstanding contributions Liu Wen-hsiung told reporters that produced by Pinctada maxima pearl expensive, the last century was the beginning of the 60's large-scale fishing, as a result of overfishing, Pinctada maxima have been the verge of extinction.

广西南珠产业协会理事长、国务院有突出贡献的高级工程师刘文雄告诉记者，大珠母贝所产珍珠价值昂贵，上世纪60年代开始就被大规模捕捞，由于捕捞过度，大珠母贝已濒临灭绝。

In this study, based on the Rnl, extinction coefficient k, transition coefficient of canopy layer stomatic resistance K', aerodynamics resistance ra and rc calculated with the data of Rn, LAI, rsi, the daily transpiration variation of Picea purpurea, Larix principisrupprechtii, Hippophae rhamnoides ,Betula platyphylla and Populus cathayana were studied in Datong County, Qinghai Province. Comparing with the practical transpiration variation measured by Li1600 Steady Porometer, the relative error of this model was less than ±15%, and the results were stabilized and tested by precision analysis.

本研究通过对Rn、LAI、rsi的实地观测，确定了林冠截流净辐射、消光系数、冠层阻力转换系数、空气动力学阻力和冠层整体气孔阻力，对青海大通地区紫果云杉、华北落叶松、沙棘、白桦和青杨的日蒸腾过程进行了模拟，与用快速称重法订正的Li1600稳态气孔仪实测蒸腾结果对比，模拟的相对误差在±15%以内；模型敏感性分析发现，温度、LAI以及rsi是决定模拟结果的主要参数，模型对各参数变化反应不敏感。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。