腐蚀

We report the liner oil tube 's structure,performance,the controlling rod-tubing wear mechanism and characteristics.

高密度聚乙烯内衬油管既有塑料管耐腐蚀和耐磨性好的特点，又具有钢质油管的机械强度，在腐蚀偏磨严重的油井上应用取得了较好的效果。

The corrosion problems bring unpredictable influence and loss in the oil-gas field development and the production process. Thus we need to solve the salts corrosion protection problems on oil gas well tube and equipments.

在油气田的开发与生产过程中，腐蚀带来的影响和损失是不可预见的，这其中我们需要解决盐水对油气井管道及设备的腐蚀防护问题。

Tonglu: composite or pure copper radiator heating system in the use of one-pipe is dangerous, because one-pipe system, high-speed hot water would have a copper corrosion, should carefully chosen.

然而由于钢制散热器怕水中的氧气，它对供热系统要求很严格，在不安全的系统中会出现腐蚀（腐蚀点大部分在管壁上，而不在焊接部位）；而另外一个事实是，目前我们国内的许多采暖系统还不是很完善，虽然国家对采暖水质早有规定，但仍有许多物业不能按标准执行。

A serial of precise standard resisters BZ-3 was used to adjust the instrument. The results showedthat the maximum error is less than 0.12%. The error is less than 0.05%in measuring the resistivity of several kinds ofenameled wire. For large piece of metal samples with low resistance, the instrument can have accurate results

通过对高精度标准电阻器组BZ-3的检测表明，全量程中的最大非线性误差为0.12％，对各种标号的漆包线的测量误差小于0.5％，对金属试样在腐蚀液体中的腐蚀情况能进行动态监测，对大试样粉末冶金样品的微小电阻也能进行精确的测量

Second, corrosion knife mold, Corrosion of high-precision CNC engraving, cutting-edge technologies through high-treatment of the knife mold a new type of precision, small size, light weight, high precision, easy to preserve.

二、腐蚀刀模，采用高精度CNC腐蚀雕刻，通过高尖端技术处理的一种新型的精密刀模，体积小、重量轻、精密度高、易保存。

The galvanic corrosion of aluminum alloy coupled with different materials, including Q235 steel, zinc-coated iron plate, copper plate, was studied by free running test in 3.5% NaCl solution.

摘 要：采用自由测试法测定了铝合金分别与 Q235 钢、镀锌铁片和铜片三种不同材料组成的电偶在 3.5% NaCl 水溶液中的电偶电流\，腐蚀电位和腐蚀速度。

In laboratory testing, coupons were immersed in brine continuously and intermittently to simulate the corrosion of the high strength steel wire in concrete crossbeam of bridge, the parameters about corrosion details of concrete coupons at different times were monitored by electrochemical impedance spectroscopy.

在实验室内进行钢丝全浸和对水泥试样间浸试验，利用电化学阻抗谱监测水泥试样中钢丝的腐蚀参数变化，并用极化曲线初步评定了阻锈剂对钢丝点蚀的影响作用；在大桥现场，用电化学方法快速检测了钢丝的瞬时腐蚀电流。

The penetration of corrosive medium would result in various corrosion of bond cement and outer surface of casing in oil well.

摘要介质渗透是固井水泥发生各种腐蚀的必要条件，也是套管外壁发生腐蚀的首要条件。

The penetration of corrosive medium would result in various corrosion of bond cement and outer surface of casing in oil well.

介质渗透是固井水泥发生各种腐蚀的必要条件，也是套管外壁发生腐蚀的首要条件。

After measurement and analysis of the interfering voltage, potential gradient, the point current density, the weight-loss increases with average current density, and the depth of penetration increases with the interfering voltage.

测量和分析了干扰电压、电位梯度、点电流密度、失重量及腐蚀坑深后，可以看出失重量随平均电流密度而增加，腐蚀坑深随干扰电压而加剧。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！