产生金属的

In the early centuries of our era, however, there gradually developed a mysticism among chemical writers due to Egyptian and Chaldean religious magical ideas, and there developed a fanciful relation of the metals as such to the sun and the planets, and as a consequence there arose the belief that it was necessary to confine the number of metals to seven.

然而在我们时代早期的几世纪里，由于埃及人和占星术宗教人士神秘的想法，在化学作家之间逐渐产生了神秘主义，而产生金属的想象的联系，例如向着太阳和行星，而结果就引发了信仰，认为限制金属的数量为七是必要的。

In the presence of magnetic field and Fe3+ with high concentrations, Magnetohydrodynamics effect was caused in the stripping voltemmetry. More metal ions were deposited on the electrode surface, and then the stripping peak current of metal and the sensitivity of the detection were obviously increased.

在金属的溶出伏安法测定中，磁场和高浓度的Fe3+的共同作用产生的磁流体动力学效应使得更多的金属离子沉积在电极表面，使金属的溶出峰电流明显提高，极大地提高了测量的灵敏度。

The reason is that in such circumstances would produce large amounts of metal particles, colleagues gathered short period of time can not be all of the heat absorption and conduction, and we take FILE or a small saw blade friction and copper alloy materials, they will not produce sparks phenomenon, because when heat absorption and conduction can be timely.

原因在于在这种情况下会产生大量的金属颗粒，同事短时间聚集的热量不能被全部吸收和传导，而我们拿锉刀或小锯条摩擦铜合金材质时，就不会产生火花现象，因为这时产生的热量能被及时的吸收和传导。

After thermal annealing at 2000C for 3 hours there's no atomic interdiffusion between copper and underlying contact metals and the devices showed little change in device performance.

经过摄氏两百度的高温退火三个小时以后，铜金属以及下层的接触金属间并没有金属原子交互扩散的现象；元件特性在经过热退火以后并未产生明显的变化。

Using carbon arc air gouging craft instead of old pneumatic chipping, has machining is high efficient , work condition is improved, the artifactitious metal surface is smooth, doesn't bring bad influence to the metal which is processed, use convenient, economy saving and no noise and so on merit.

采用碳弧气刨工艺代替旧式风铲，具有加工效率高、改善工作条件、加工的金属表面光洁平整、对被加工金属的性能不产生有害影响、使用方便、经济节约、无噪音等优点。

In order to achieve the low temperature process, we used metal-induced lateral crystallization to fabricate it . Ni can lower the temperature of process and annealing time because the reaction between Ni and Si of forming Nickel Disilicide(NiSi2) which lowers the annealing time in further process.

在低温制程上采用的是金属侧向诱发结晶(Metal-induced Lateral Crystallization)方式，此方式是使用镍降低制程的温度以及生长时间，原理主要是藉由镍与矽之间的反应产生二矽化镍(NiSi2)，进行退火后可产生金属诱发结晶与金属侧向诱发结晶两种结构，再进行其微结构观察。

It is occasionally applied to abraded surfaces with good results,especially if there is some rusting due to a delay in painting after blasting.

这种方式常常被使用在磨擦过的金属表面，特别是那些在喷沙后因没有及时油漆而产生锈蚀的金属表面，并产生非常好的效果。

He found that the sound had been made accidentally when two pieces of metal had stuck together and closed to Bell over the wire.

他发现当两根金属线偶然相撞井接通电路时，才产生了这声音。沃森把金属线分开，金属的振动已经通过电线传到贝尔那里。

"The acid reacts with most metals, to produce hydrogen and the metal's chloride, and with oxides, hydroxides , and many salts."

盐酸与大多数金属反应产生氢和金属的氯化物，还能与氧化物、氢氧化物及许多盐起反应。

There is no essential difference between the two, as the pool of metal around the hole surrounded by molten metal gravity and surface tension have to make holes to bridge the trend, while the metal vapor is generated by a continuous attempt to maintain the existence of holes.

从机理上看，这两种焊接方法的前提都是焊接时存在小孔，两者没有本质的区别，小孔周围为熔池金属所包围，熔化金属的重力及表面张力有使小孔弥合的趋势，而连续产生的金属蒸气则力图维持小孔的存在。

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。