成分

For better use of freshwater pearls, extraction technology of pH 3.0 acetic acid and sodium acetate in water was studied.

为更好的利用淡水珍珠中的功能成分，减少提取过程中对蛋白等成分的影响。

Silver grass is weakly acidic, pH value is between 5.53 and 6.49, alkali buffer capacity is between 0.89ml and 3.31ml and acid buffer capacity is between 11.52ml and 17.38ml; To the wet ability of silver grass, the under-parts of stem are better than upsides, the inner surface of stem is better than surface, the wet ability of leaf is between surface and inner surface; compare with wood and wheat straw, the wet ability of silver grass is worse than that of wood but better than that of wheat straw.

荻草的化学成分主要是由纤维素、半纤维素、和木质素以及抽提物组成，在不同部位，各个化学成分的含量也不相同；荻草呈弱酸性，pH值在5.53～6.49之间，荻草的碱缓冲容量在0.89ml～3.31ml之间，酸缓冲容量在11.52ml～17.38ml之间；荻草茎秆下部的润湿性好于上部，荻草茎秆内表面的润湿性要好于外表面，荻草叶子的润湿性介于内外表面之间，与木材相比，荻草的润湿性不如木材，但要好于麦草；荻草茎秆下部的纵向抗拉强度要高于其上部，热处理15分钟后，茎秆下部的强度有所下降，茎秆上部有所提高，并没有表现出水热处理后荻草单元强度突然骤降的结果

Indoor air sources of formaldehyde are mainly in the following aspects : 1, the plywood used for interior decoration, Ximugongban, medium density fibreboard and shaving board, and other artificial plate because formaldehyde has strong sexual bond, has strengthened plate and the hardness control, corrosion functions, Therefore, the current production of imitation board use Jiaonianji merits to formaldehyde as the main ingredients thiourea aldehyde resins, plate, residual and did not participate in the response formaldehyde will gradually release of the surrounding environment is a indoor air formaldehyde main ;2, using imitation board manufacturing furniture, some manufacturers in the pursuit of profit, the use of unqualified plate. In preliminary front face material reuse inferior glue, the manufacturing processes are not standardized, as a result of customers buying home, to buy a small emission points ;3, containing formaldehyde content and may distribute to the outside other categories decorative materials, such as stickers Qiangbu, with wallpapers, chemical fiber carpet, foam, paint and paint, etc.;4, combustion, emit formaldehyde certain materials, such as cigarettes and some organic materials.

室内空气中的甲醛来源主要有以下几个方面：1、用作室内装饰的胶合板、细木工板、中密度纤维板和刨花板等人造板材，因为甲醛具有较强的粘合性，还具有加强板材的硬度及防虫、防腐的功能，所以目前生产人造板使用的胶粘剂是非曲直以甲醛为主要成分的脲醛树脂，板材中残留的和未参与反应的甲醛会逐渐向周围环境释放，是形成室内空气中甲醛的主体；2、用人造板制造的家具，一些厂家为了追求利润，使用不合格的板材，在粘接贴面材料时再使用劣质胶水，制造工艺不规范，结果顾客买回家去，等于买回了一个小型废气排放站；3、含有甲醛成分并有可能向外界散发的其他各类装饰材料，比如贴墙布，贴墙纸，化纤地毯、泡沫塑料、油漆和涂料等；4、燃烧后会散发甲醛的某些材料，比如香烟及一些有机材料。

The purpose was to accumulate data preli minarilyfor learning chemical ingredients and pharmacological efficacy of celery and provideexperimental basis for studying and screening ingredients with pharmacological effect further.

为了解芹菜的化学成分和药理功效作初步的资料积累和进一步展开对芹菜中具有药理作用的成分的研究和筛选提供试验依据。

Health care function tests: Immunomodulation test, anti-mutation test, anti-fatigue test and oxygen lack tolerance test have been done using white wax scale, according to the regulations for health care food.

与其他动植物的营养成分比较，白蜡虫卵具有蛋白含量高、人体必需氨基酸、矿物元素、维生素等含量十分丰富的显著特点，同时还含有多糖、几丁质、黄酮、卵磷脂等对人体具有很好保健价值的功能成分。

In its basic form it contains only four ingredients; flour, salt, baking soda, and buttermilk, but it can be transformed when you add other ingredients.

其基本形式是只含有四种成分；面粉，盐，小苏打，和牛奶，但它可以转化当您添加其他成分。

Hair follicle composed of epithelial compartment (outer root sheath, inner root sheath) and mesenchyme compartment dermal pap...

毛囊由属上皮成分的内、外根鞘和属真皮成分的真皮鞘与毛乳头组成，是一个很值得深入研究的皮肤附属结构。

The defense officials who spoke on condition of anonymity displayed weapon's components including mortar shells and rocket-propelled grenades.

一位不愿意透露姓名的美国国防部官员展示了武器的成分，这些成分包括迫击炮的外壳和以火箭推进的手榴弹。

The formation of surface films in reciprocating cylinder bore/piston ring pairs lubricated by fully formulated engine oils was studied using the electrical contact resistance method.

为了研究摩擦副中表面膜的形成条件、化学成分和状态等，用接触电阻考察了全配方机油润滑条件下往复运动的缸套/活塞环摩擦副中表面膜的形成过程，并采用Auger电子能谱仪、X射线光电子能谱仪、X射线衍射仪系统研究了表面膜的成分、厚度、化学价态等特性。

The DLF refining station can increase heat efficiency and reduce the consumption of the ladle liner materials.

为了提高合金收得率和控制成分的准确度，成分微调所需的合金是通过在包盖特定位置设置的溜管，加到底吹氩打开的&渣眼&处，这就减少了钢水带渣造成的合金氧化损失(如图1所示)。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。