滴下

In the presence of the combination of sulphuric and phosphoric acid, with sodium diphenylamine sulfonate as the indicator, standard solution of potassium dichromate was used to titrate total iron value.

试样以盐酸溶解后，在酸性介质中，先以氯化亚锡将三价铁大部分还原为二价，然后在钨酸钠指示下，再以三氯化钛将剩余的三价铁还原为二价，过量的三氯化钛以重铬酸钾氧化消除干扰，在硫磷混合酸存在下，以二苯胺磺酸钠为指示剂，用重铬酸钾标准溶液滴定全铁量。

If a drop of blood be drawn by pricking one's finger, and viewed with proper precautions, and under a sufficiently high microscopic power, there will be seen, among the innumerable multitude of little circular, discoidal bodies, or corpuscles, which float in it and give it its color, a comparatively small number of colorless corpuscles, of somewhat larger size and very irregular shape.

如果刺一下手指，取出一滴血来，并相当小心地将之放在一个倍数足够大的显微镜下观察，你就可以在无数漂浮在血液中并使血液呈现红色的圆盘状小球之间，发现数量较少、体积较大、形状很不规则的无色球状微粒。

Drip cup : located in the lower back of the refrigerator need to be empty as necessary.

滴水杯：安装在冰箱内后方比较靠下的地方需要经常清空。

In some cases, feeding via an intravenous drip may be necessary.

在某些情况下，经一饲静脉滴注可能是必要的。

The appropriate dripper discharge should be selected for different soil texture and climatic conditions. In this paper, the laws of soil moisture distribution and soil evaporation in different dripper discharges were researched.

本文研究了干旱区不同的滴头流量下土壤水分再分布及土壤蒸发的变化规律，结果表明，地表湿润圈的大小直接影响到蒸发量的大小。

In the interior, and even in parts of the temperate south-east - inland from the Great Dividing Range - droughts are commonplace, and years can pass without a drop of rain.

在内陆，甚至在气候温和的东南部部分地区，干旱非常普遍，有时几年都不下一滴雨。

The rate of droplet growth under different conditions can be evaluated.

可以计算在不同条件下的云滴增长率。

In titrating the specimen, determine the endpoint at a temperature of 10 or higher.

在滴定样品时，终点的确定要在10度或者更高的情况下。

Combining ion exchange process and silicon hydrolyze process Silicon dioxide mother nuclide with a specific particle size was prepared from sodium silicate through the dropwise technique , then the large particle size , high concentration and stable silica sol was prepared . The stability of silica sol also can be improved by enwrap .

和"单质硅一步溶解法"相结合的方法，用离子交换法制备晶种，并采用滴加工艺制备一定粒径大小的二氧化硅作为母核，在催化剂和分散剂共同作用下水解单质硅的方法使二氧化硅母核颗粒进一步增长成大粒径的二氧化硅颗粒，并另外还采用水溶性高分子对纳米SiO_2粒子进行"原位表面包覆"提高其稳定性，制备了大粒径，高浓度，稳定的纳米硅溶胶。

METHODS The animal models of the transected sciatic nerve of 40 SD rats were established, which divided into 4 groups: normal saline group, nerve growth factor group, bFGF group and normal control group. The epineurium of the transected sciatic nerve was sutured under microscope, then bFGF or NGF was dropped into local sites and injected intramuscularly once a day for 30 days after operation.

建立大鼠坐骨神经离断模型，镜下进行神经外膜缝合，局部滴加药物和术后肌注bFGF 以及临床用药神经生长因子，通过神经传导速度和功能指数评定观察坐骨神经修复情况。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失