无铅的

It is used for pressure and vacuum of ammoniac liquid and gas as well as of zhe madia which cannot corrode carbon steel, stainless steel and solders like tin and lead.

仪表适用于测量氨的液体和气体的压力真空，也可测量对碳钢、奥氏体不锈钢和锡铅类焊料无腐蚀作用的介质的压力和真空。

It is used for pressure and vacuum of ammoniac liquid and gas as well as of zhe madia which can't corrode carbon steel, stainless steel and solders like tin and lead.

仪表适用于测量氨的液体和气体的压力真空，也可测量对碳钢、氏体不锈钢和锡铅类焊料无腐蚀作用的介质的压力和真空。

When seedlings were cold-acclimated at 4℃ for 7d, the ATPase activities on the PM and tonoplast were higher than those of the seedlings treated at 22℃.

标志ATPase活性反应的磷酸铅沉淀物主要分布在叶片栅栏细胞和海绵细胞的质膜和液泡膜上，ATPase在这两类细胞中的分布及活性无明显差异。

The electron-dense lead phosphate deposits, an indication of ATPase activity, mainly distributed on the plasma membrane and tonoplast in the mesophyll cells of palisade and spongy tissue, in which there were no obvious difference of ATPase distribution and activities.

结果表明：标志ATP酶活性反应的磷酸铅沉淀物主要分布在叶片栅栏细胞和海绵细胞的质膜和液泡膜上，ATP酶在这两类细胞中的分布及活性无明显差异。

Variegate had higher protein content and lower fat content and had microelements of Fe, Zn and Cu with some amount and the content of Zn, Cu, Pb and Cr were all lower than the limits of the metals in national free-pollutant seafood safety requirements (GB18406.4-2001) and could meet the microelements requirements of human body.

结论］青蛤和杂色蛤的蛋白质含量较高，脂肪含量较低，含有一定量的微量元素铁、锌和铜，且锌、铜、铅、铬的含量均低于我国无会害水产品安全要求(GB18406.4-2001)中的限量标准，可满足人体对微量元素的部分需要。

Ammonia pressure meter is a special meter for ammonia, used to measure various non-crystallized and solidified medium that have no corrosive action on common carbon system steel, alloy structural steel, Austenite stainless steel, or tinsel bar solder, principally applicable for measuring pressures of liquefied ammonia, gas, or other mixtures in cooling equipments in chemical fertilizer production.

简介 氨压力表为氨专用仪表，用于测量对普通碳钢、合金结构钢、澳氏体类不锈钢及锡铅合金钎焊料无腐蚀作用，非结晶和凝固的氨气、氨液介质的压力。主要适用于化肥生产过程中设备或其他中用来测量氨的液体、气体或其混合物等的压力。

They can be divided into 2 major categories, first printed circuit board chemicals including etchants, inner layer cleaners, desmear chemicals, electroless copper, stripper agents, etc. These products caters to process needs of both domestic and foreign PC board manufacturers.

主要的产品可分两部分，一为印刷电路板的化学药品，包括有蚀刻液、内层清洁液、去胶渣化学品、无电镀化学铜、黑棕化液和剥锡铅液等，提供国内外各PC主板公司生产流程所需的化学药品。

Flow injection fluorometry for the determination of carbamazepine in pharmaceuticals and plasmaA simple, sensitive and specific spectrofluorimetric method has been developed for the determination of CBZ. The method was based on lead dioxide solid-phase reactor flow injection on-line oxidizing CBZ into fluorescent product in medium of phosphoric acid. The product has green-yellow fluorescence at excitation wavelength of 355 nm and emission wavelength of 478 nm, and the fluorescence intensity could be enhanced in the presence of acetone. The reaction conditions and experimental conditions were studied and optimized.

二、流动注射在线氧化荧光法测定卡马西平的研究利用卡马西平自身无荧光，经过氧化后可转变为在最大激发波长为355nm，最大发射波长为478nm的强荧光物质，而且丙酮对该荧光体系有增敏作用的现象，应用流动注射体系建立了以醋酸纤维素固定化的二氧化铅作为固相反应器、在磷酸介质中在线氧化荧光法测定卡马西平的新方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。