石墨

A graphite furnace atomic absorption spectrometry for the determination of trace tin in pig iron with pyrolytically coated graphite tube and Zeeman effect correction was reported.

报告了采用热解涂层石墨管，塞曼扣背景的石墨炉原子吸收光谱法测定生铁中痕量锡的方法。

Hainan is rich in minerals, notably high-grade iron and tungsten, but also rich in titanium, manganese, salt, copper, bauxite, molybdenum, gold, silver, coal, cobalt, graphite, and crystal. Hainan's rich offshore fishing grounds provide shrimps, scallops, tuna, and Spanish mackerel, and pearls are harvested in the shallow bays surrounding the island.

海南富有矿物特别是高等级的铁和钨，也富有钛、锰、盐、铜、矾土、钼、金、银、煤、钴、石墨和水晶；海南岛拥有大量的渔场供应虾、扇贝、金枪鱼和马鲛鱼，同时在岛周围的浅海湾可以采集到珍珠。

The missile-sized pencil was constructed of 8,000 Douglas Fir boards, a 10-inch graphite core, and a 200 pound rubber eraser.

这支飞弹大小的铅笔是用 8，000 块黄衫板、一支 10 吋的石墨笔心和一个 200 磅重的橡皮擦制作而成。

The use of mechanical seals, and do not have to fill, automatic mind, long life, wide parameters (pressure 15-30 kg / cm 2, temperature -50 ℃-450 ℃, to speed 0-500 /, media: conducting oil, steam , Water, air, etc.), is to address run, run, drip, leak, energy conservation, improve the working environment ideal for sealing components conducting oil rotating series of joint: in-house and the spherical shell after fine grinding process, using a spring 30WACr2VA tungsten chromium Vanadium alloy spring steel from refined, and the introduction of Japanese cedar trees machinery will be silver-impregnated graphite high temperature seals from the assembly, with the temperature effects, and life than the original, high-temperature range of 30%.

该产品采用机械密封，不必填料，自动同心，使用寿命长，参数广（压力15-30㎏/㎝2，温度-50℃—450℃，转速0—500转/分，介质：导热油、蒸汽、水、空气等），是解决跑、冒、滴、漏，节约能源，改善工作环境的理想密封部件（导热油系列旋转接头：壳体内部和球面经过精磨加工，弹簧采用30WACr2VA 钨铬钒合金弹簧钢精制而成，并引进日本柏木机械株式会银浸渍石墨高温密封件组装而成，具有耐高温之特效，而且使用寿命较原来中、低温系列高30％。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。