精密的

Driving toothed gear precision forgings have been successfully produced by compound precision form ing technology combined waFln forging of blank with cold extrusion not only with high surface cleanness,dimension accuracy and small post machining of outer surface but also the indention inner gear formed by cold extrusion can be put into use without post machining,with notable energy saving and material saving and economic benefit.

精锻件不仅表面光洁、尺寸精度高、外表面的后续加工余量小，而且冷挤压成形的锯齿状内齿无需后续加工就可以装配使用。因此，精密成形具有显著的节能、节材效果，经济效益十分显著。

The utilization rate of large precise instrument is a key indictor to evaluate its comprehensive effect.

大型精密仪器设备的利用率是考核评估其综合效益的一个重要指标。

SiC ceramic has been extensively applied in precision bearings, sealing element, steam-turbine rotor, burner nozzle, heat interchanger parts, atomic reactor materials and etc. because of its excellent properties in high temperature mechanical properties, antioxidatio, abrasion resistance, thermal stability, smaller coefficient of thermal expansion, larger thermal conductivity, hardness, thermal shock and chemical corrosion.

SiC陶瓷具有优良的高温力学性能，抗氧化性强、耐磨损性好、热稳定性佳、热膨胀系数小、热导率大、硬度高以及抗热震和耐化学腐蚀等优良性能，被广泛应用于精密轴承、密封件、气轮机转子、燃烧喷嘴、热交换器部件及原子热反应堆材料等，并日益受到人们的重视，应用前景十分广阔。

ABSTRACT Interior surface strengthening of deliberate parts is proved to be a tough and attention-drawing task in the material surface modification field.

精密零部件内表面的强化处理一直是材料表面改性研究领域一个倍受关注的难题。

ABSTRACT Interior surface strengthening of deliberate parts is proved to be a tough and attention-drawing task in the material surface modi...

精密零部件内表面的强化处理一直是材料表面改性研究领域一个倍受关注的难题。

The technique has isomerization of 1,2,4-trimethylbenzen and precise distillation as a union, which is unique and feasible.

该工艺采用偏三甲苯非临氢催化异构化技术与精密精馏的分离手段有机结合的方法，工艺独特可行。

The numerical results show that the ocean models in diurnal band are more stable than those in semidiurnal band, and the correction of the change in tidal height plays a significant role in determining accurately the phase lag of the tidal gravity.

数值结果说明周日频段内的海潮模型要比半日频段内的模型更加稳定，实施验潮站潮位高变化改正对精密确定重力固体潮相位滞后起重要作用。

TO eliminate error caused by the rod being tipped forward or backward, the rodman waves the rod ,or tilts it slowly forward and backward,and the leveler takes the least reading. For less precise leveling, as when rod rcadings for ground points are determined to the nearest 0.1 ft, usually less care is exercised in keeping the bubble centered and the rod vertical,and the observations are no checked.

为了消除所造成的误差棒正在向前或向后，在罗德曼波杆，或倾斜，慢慢前进，后退，和矫直需要至少不到精密水准，如棒为确定地面点到最近的0.1英尺，通常较少照顾行使维持泡沫中心和棒垂直，没有检查。

Zhong Liman and other forensic analysts have detected arsenic in the hair of Guangxu's body by modern experiments so they believed that Guangxu died of 'acute gastrointestinal arsenic poisoning'.

钟里满等专家，利用现代精密仪器，对光绪帝头发上的砷含量进行测定后认为，光绪帝死于"急性胃肠型砒霜中毒"，学界多数人的认识为之一变。

The pressure controller is an important instrument to control and regulate the liquid pressure in a triaxial test system.

压力控制器是与土力学试验仪器三轴试验仪配套的装置，用于水压力的精密调节和控制。

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。。。。