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PUT RESISTOR IN THE STATE OF TEMP .40±2℃ CONSTANT ,RELATIVE HUMIDITY 90~95% CONSTANT ,CONNECT RESISTOR AS ANODE,CONNECT METAL PLATE AS CATHODS,APPLY 100V DC FOR 1000 HOURS,THE VARIANCE OF VALUE SHOULD BE WITHIN 3%±0.05Ω.
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将电阻器放入温度40±2℃及湿度90~95%之恒温恒湿槽中,其端子加正极,金属板加负极,以直流电100V加压1000小时后,其阻值变化应在3%±0.05Ω以内. |
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PV modules connected in series should be installed at same orientation and angle.Different orientation or angle may cuse loss o output power due to difference of amount of sunlight exposed to the module.
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串联的光伏组件应安装在同一方向和角度，不同方向和角度安装由于阳光辐射的差异导致能量损失。 |
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PVC and other plastic products Renzaoge (covering their operating permit operating permit). Mode of operation, processing, manufacturing.
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聚氯乙烯人造革及其它塑料制品（涉及许可经营的凭许可证经营）。经营方式，加工，制造。 |
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PVC insulated and PVC(PE) sheathed fine steel wire armoured power cables.
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聚氯乙烯绝缘、聚氯乙烯（聚乙烯）护套细钢丝铠装电力电缆。 |
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PVC parapet, communications facilities, hardware items, plastic products, machinery parts and components manufacturing.
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PVC护栏、交通设施、五金件、塑料制品、机械零部件的制造。 |
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PVC resin processing ACR improve agent production, marketing; Rental housing.
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PVC加工改进剂ACR树脂生产、销售；房屋出租。 |
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PVC tube processing and marketing.
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聚氯乙烯增强软管加工销售。 |
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PY160 grader is mainly used for land levelling, road maintenancing, road constructiong in large areas, ita is a necessary construction equipment for earthmoving, slope scraping and earth embanking.
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PY160平地机主要用于大面积平整场地、养路和筑路，是移土、刮坡、摊平和路堤成形等必需的工程机械设备。 |
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PYP evaluation system balances elements such as knowledge, concepts, skills, attitudes and actions. Formative and summative assessments occur continuously.
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建立PYP课程过程评价体系，平衡知识学习、技能培养，态度养成等要素。以过程性评价为主，终结性评价为辅。 |
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PYP students always learn through different educational activities, they deepen their understanding and internalise concepts from different perspectives.
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PYP学生总是从不同的教育活动中学习，他们从不同角度加深理解、捕捉概念。 |
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Pa engers are to check in at the airport an hour before the plane takes off.
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旅客必须在飞机起飞前一小时到机场办理手续。 |
