有凹的

Although the gravure process provides benefits, there are areas of concern, says Mel Baughman, quality manager at AARP.

虽然凹印过程中提供的好处，有令人关切的领域，梅尔鲍曼说，质量经理美国退休人员协会。

The light distributions in an erythrocyte with the shape of native biconcave,oblate spheroid,or disk sphere under the irradiation of a plane light of 632.8nm were studied with a numerical calculation method of finite difference time domain.

我们用有限时域差分的数值计算方法来研究用632.8nm平面光波照射双凹型，扁球体型或圆盘球体型红细胞后在红细胞内部产生的光分布。

The research shows that gas concentration shows generally an increasing tendency along the working face airflow direction, from 0.095% to 0.18%, under the effect of gas drainage points, up-and-down changing locally; gas distribution in a transect of working face is unequal, under the effect of gas emission, ventilation and drainage, the gas concentration near coal wall is larger than that near goaf, which is a concave function distribution within a distance of 1876.5 m from the inlet of working face, after greater than 76.5m, which is a decreasing distribution from coal wall to goaf.

研究表明，该工作面瓦斯体积分数沿风流方向总体呈逐渐增加趋势，介于0.095%~0.18%之间，受瓦斯抽放点的影响，局部有起伏变化；工作面横断面瓦斯体积分数分布不均匀，受瓦斯涌出、通风和抽放的影响，靠近煤壁侧瓦斯体积分数要高于采空区侧，在距离进风口约18~76.5 m范围内为凹函数分布，大于76.5 m之后，从煤壁至采空区为单调下降函数分布。

In general, an industrial component may have both convex and concave portions as part of its boundary.

一般来说，工业组件可能有个凸，凹这两部分的一部分，它的边界。

It is the moderate size scallop on the stone that makes us feel consolatory. It will be filled with water when it rains.

稍稍能安慰我们的，是在那石上有一个不大不小的坑凹儿，雨天就盛满了水。

In order to achieve a tradeoff between vectoring and unvectoring state, the proposed parameters of DTN are: Z=3~4, secondary injection flux is about 3%, cavity divergence angle is about 10°, cavity convergence angle is 20°~30°, injection angle of secondary is about 30° by counterflow injection.

为了实现DTN在推力矢量和非推力矢量下都有较好的内流综合性能，所建议的设计参数为：落压比为3~4，引射量为3%，凹腔扩张角为10°左右，收敛角在20°~30°，引射角度为30°逆流引射角(β=30°)。

Important faults : Hollow or humped back.

严重缺点：凹形或者有肉隆起的背部。

Choking milk is abnormal performance, we must read the doctor's examination, to give timely and appropriate treatment, if the milk after the baby choked breathing very smooth, it would be best way to think, let him cry and then force you to watch for when to cry oxygen and expiratory movements, watch to detect any abnormalities such as a weak voice tone, breathing difficulties, severe chest concave, etc.

呛奶是异常的表现，一定要经过医生的检查，给予及时、适当的治疗，如果呛奶后孩子呼吸很顺畅，最好还是想办法、让他再用力哭一下，以观察哭时的吸氧及吐气动作，看有无任何异常(如声音变调微弱、吸气困难、严重凹胸等)，如有即送医院。

Carving gravure of business card printing and membership card making production and offset business card printing and membership card making, and so on are very different, first of all the manuscripts submitted to approx 10 times, the perimeter line by hand is decisived on top of a piece of zinc tablet with a smaller machine to get an outside line back into the original large carved in a piece about an inch of eight brass, and copper strip it is some anticorrosive toppedwith films, because of copper strip is triggered from the perimeter line, so the rough body by hand for the film, when removed, and then use the medicine to the erosion of deep water, and proto-end knife with a magnifying glass and, thetolerant to the edge, sharp corners repaired, such as location on a layer of chrome, it's a printing plate.

雕刻凹版的制卡和会员卡制作制作与柯式制卡和会员卡制作等有很大的分别，首先把来稿放大约十倍，把外围线用手工刻划在一块锌片之上，再用一部缩细机械把外线缩回原大刻在一块约八份一寸的铜片上，而这件铜片上是涂有一些防腐蚀薄膜的，因为铜片只是勾上字的外围线，所以要用手工将粗身地上的薄膜刮去，然后用药水将印纹蚀深，最后仍要用放大镜及雕刻刀，耐性地将线边、尖角等位置修好，再镀上一层铬，这印版便大功告成。

For example: Left horizontal stabilizer outboard leading edge at WL 368.25 dented approximately 2 inches in diameter.

Area marked in red 左水平安定面外侧前缘水平站位368.25处有直径为2英寸的凹坑。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。