下凹的

The cones are globose to ovoid, 1.5-2.5 cm in diameter with 16-28 scales, arranged in opposite pairs in four rows, each pair at right angles to the adjacent pair; they mature in about 8-9 months after pollination.

叶交互对生，在绿色脱落的侧生小枝上排成羽状二列，线形，柔软，几无柄，通常长1.3一2厘米，宽1.5一2毫米，上面中脉凹下，下面沿中脉两侧有4－8条气孔线，雌雄同株。

The article analyzes the experiment results of gas percolating in low permeable medium with irreducible water, and gets its percolation law and features, that appear on the relational chart of percolation velocity vs. pressure gradient as a nonlinear percolation curve which changes continuously from a concave curve under low pressure gradient to a straight line under high pressure gradient.

文章分析了在含束缚水条件下低渗透岩石介质气体渗流实验结果，得到了其渗流规律及特征，即在气体渗流速度与压力梯度的关系图上表现为从较低压力梯度下的凹形曲线至较高压力梯度下的直线连续变化的非线性渗流曲线。

This paper discusses a variation equation problem in a class of singular stochastic control with stopping time,gives its solution under two different conditions,which is a one order continuous differentiable and concave function,and gives the exact form.

讨论了一类带停时的奇异型随机控制问题中的一个变分方程问题，并且在两种不同的情况下给出了该变分方程的解，即为一阶连续可导凹函数，并在两种情况下给出了此函数的具体形式。

Under these assumptions, for any given selling price the paper develops the criterion for the optimal solution to the replenishment schedule, and proves that the optimal replenishment policy not only exists but is also unique. It shows that the total profit per unit time is a concave function of price when the replenishment schedule is given.

在这些假设下，证明了对任意给定的价格，最优订货周期长度和该订货周期内最优存货时间的长度不但存在而且惟一，又证明了在给定订货周期条件下平均利润函数是关于价格的严格凹函数，求出了物品的最优销售价格。

In the function of the transaction costs being concave function and more general market friction conditions, giving a algorithm of mean-absolute deviation model and the mean-average absolute deviation model under conditions.

在一般摩擦市场下交易费用函数为凹函数时，给出了均值—绝对偏差模型和均值—平均绝对偏差模型在此条件下的求解算法。

Theorem C.If the density function fhas the second derivative andlogfis a concave function,the MLE of〓for two-sample scale model PSuniquely exists.

定理C。若密度函数f具有二阶导数并且logf是严格凹函数，则对于双子样尺度参数模型在PS条件限制下，〓的MLE唯一存在。

Concavo-convex business card printing and membership card make unique paper surface of the image.

矮矮制卡和会员卡制息也可以在纸张暗不天变不败出格的凹下图像。

The "Phoenix" was just one of the dramatic "pictorial" crop formations which appeared in the fields of England last summer--and to our surprise the plant samples taken from it (and several of the other equally astounding formations) showed clear evidence of exposure to a plasma discharge: stunted and poorly-developed seed-heads, massive apical node elongation, expulsion cavities and--in several cases--node bending which could not be attributed to phototropism/gravitropism.

"凤凰"只是其中一个戏剧性的作物结构"图案"，去年夏天出现在英格兰的田地-和令我们吃一惊的是取自它的植物样本（及几个其它同样惊人的结构）显示清楚的证据，曾在一等离子体放电下暴露：发育迟缓和弱发展的种子头，大量的顶上茎节延伸，驱逐凹处及-在一些情况下-茎节弯曲并不能归因於向光性/重力影响。

Gravure press is not discharge on down during the mode of production, the per-color business card printing and membership card after harvest cylindrical insertreleased, offline after the subject with a single eyefor a cross-cutting machine rolled business card printing and membership card making for easier and more precise printing long broken sected collection, and then set the broken sected collected leaflets business card printing and membership card making products in spinons convex, indentation, die-cutting, waste, collection, testing, packaging; business card printing and membership card making products for stamping or compact label positioning easy-care, and the increase in the operation, the disadvantage is that the above process, the operation covers an area of large plant, to make more, and sometimes the drum to the materials offline operation in cross-cutting precision |interrupted Zhang superstandard, it will be a large number of categorizing people and a large area of the workspace.

凹印机是采用上料下料不停机的生产方式，进行逐色制卡和会员卡制作后收成卷筒状取下，离线后通过一台识标横切机把卷状制卡和会员卡制作品以单幅印长断切收集，再将断切收集来的单张制卡和会员卡制作品进行棘凸、压痕、模切、剔废、收集、检验、包装；制卡和会员卡制作品如需要烫金或镭射标定位烫，还需增加工序，以上工艺缺点是工序多，占地面积大，使用机台多、人员多，有时卷筒印材离线作业在横切过程中断张精度超标，还需大量的分检人员和大面积的工作空间。

Experiments show that, in applying the correct mold structure and appropriate process conditions, when the temperature at 350 ° C billets around Rafah Deep Mold temperature at 350 ° C and about good lubrication circumstances, can be successful in stamping on the crank press to produce magnesium phone alloy shell.

实验表明，在应用正确的模具结构和适当的工艺条件下，当坯料温度在350℃左右，拉深凹模温度在350℃左右和良好润滑情况下，能够成功地在曲柄压力机上冲压生产出镁合金手机外壳。用英文翻译一下哦！！！！！！！！！谢谢！！！！！！！！

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。