金属化

The palladium-catalyzed allylation is a powerful tool for C-C, C-N, and C-O bond formation, which has been widely applied to organic chemistry.

而利用金属钯当作催化剂来进行烯丙基化反应，形成碳-碳键，碳-氮键和碳-氧键，在有机化学中是很广泛的合成方法。

TiN -Al2O3 composite material was prepared by aluminothermic reduction of TiO2 in coke bed from mixtures of TiO2 powder and metal AI powder.

以金属铝粉和钛白粉为原料，在匣钵中埋炭保护气氛下采用铝热还原氮化法制备了TiN-Al2O3复合材料。

Using metal Al and TiO2 powders as starting materials TiN/Al2O3 composite ceramics were prepared by aluminothermic reduction of TiO2 in coke bed and a flowing nitrogen stream.

以金属铝粉和钛白粉为原料，在流动氮气和匣钵埋碳保护气氛下采用铝热还原氮化法制备了TiN/刚玉复合陶瓷。

The corresponding conditions were atmospherically react 3.5 h with heating up temperature 383 K, n/n=8 and n/n=0.08. The conversion of HDA was 100% with 91.24% yield of HDU-M.

Zr(NO3)4*5H2O可以有效抑制甲基化副反应，是活性最佳的金属含氧酸盐催化剂，对应工艺条件为：加热温度 383 K，反应时间 3.5 h，n/n=8，nCat。

The Au/AuGe(88/12)/Au back-contact metal structure was deposited on the GaAs substrate using an electron-beam evaporator. Various post thermal treatments were employed including conventional furnace and rapid thermal annealing. It was found that the outer Au layer thickness and furnace annealing temperature had large effects on the specific contact resistance.

在实验中我们在砷化镓基板背面进行蒸镀背金结构，而此背金结构是由三层金属所组成，分别为金/锗(12%)金(88%)/金，我们控制最外层金的厚度来量测与观察特徵接触电阻的大小，同时改变炉管加热的温度与快速热退火系统做比较，背金结构之元素分布比较可由欧杰电子分析得到，而扫描式电子显微镜可分析其两者之间的表面形貌差异。

During the second transition about 231°C, a structural change took place, which corresponding to decomposition of silver behenate. The major thermal decomposition products are silver nanoparticles and behenic acid. The gas products from thermal decomposition of silver behenate were detected by MS. Carbon dioxide was first emerged, subsequently water, hydrogen, acetylene and some small molecule alkenes appeared.

采用MS对山嵛酸银在整个热分解过程中所释放出的气体产物的跟踪检测发现，首先是二氧化碳气体的放出，接着是氢气和水，随着温度的进一步升高，又伴随着乙炔和一些小分子的烯烃产生，当温度进一步升高到500℃左右时，被山嵛酸钝化的银纳米粒子逐渐失去了有机分子，最终的热分解产物为金属银。

From June 2002 to March 2003, 29 men with obliterative strictures of the bulbomembranous urethra underwent the core-through procedure. The length of the stricture was 2.5 cm or shorter in all patients, with good alignment between the two urethral ends. The obliterative fibrotic tissue was vaporized by a holmium laser guided by a metal sound introduced through the suprapubic tract.

从2002年6月到20033月，29位球膜尿道的闭锁性尿道狭窄的男性接受穿越核心的外科手术，所有患者的狭窄部位长度为2.5公分或小于2.5公分，其手术部位尿道两端的精准度相当好，闭锁纤维化组织藉由钬雷射的金属探针经由上耻骨通道被蒸发。

From June 2002 to March 2003, 29 men with obliterative strictures of the bulbomembranous urethra underwent the core-through procedure. The length of the stricture was 2.5 cm or shorter in all patients, with good alignment between the two urethral ends. The obliterative fibrotic tissue was vaporized by a holmium laser guided by a metal sound introduced through the suprapubic tract.

从2002年6月到20033月，29位球膜尿道的闭锁性尿道狭窄的男性接受穿越核心的外科手术，所有患者的狭窄部位长度为2.5公分或小於2.5公分，其手术部位尿道两端的精准度相当好，闭锁纤维化组织藉由钬雷射的金属探针经由上耻骨通道被蒸发。

The caustic was regenerated from the spent caustic in an ethylene plant which adopted precipitation with a oxide of transition metal and causticization.

采用过渡金属氧化物沉淀法和苛化法处理乙烯裂解废碱液得到再生碱液，考察了再生碱液循环使用的可行性。

The corrosion inhibitor prevents cathode and anode process of metal corrosion,so it can be used in a wide temperature range(60～150℃)and in high chlorhydric acid concentration (15%～34%).

该缓蚀剂对金属腐蚀的阴、阳极过程起抑制作用，因此使用的温度范围宽（60～150℃），盐酸浓度高（15％～34％），该产品生产工艺简单，成本低，是油田较理想的酸化缓蚀剂。

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。