正的

Companies are producing various specifications heptane, n-heptane, iso-octane, n-hexane, and environmental protection-type special solvent oil, 120 # solvent oil, industrial products and reagents, welcome customers at home and abroad came to negotiate and buy.

公司现生产各种规格的庚烷、正庚烷、异辛烷、正已烷、环保型特种溶剂油、120#溶剂油等工业品和试剂，欢迎国内外客户前来洽谈、选购。

When next he sees her, he is buying a magazine to read during the flight and becomes aware that someone is jostling him.

当下次他看到她时，他正买杂志看以打发等待航班的时间，意识到，有人正看着他。

When laying oven walls, top brick corners shall be aligned according to alignment lines and lower corners according to lower-layer bricks.

砌筑炉墙时，砖的上角依准线找正，下角按下层砖找正。

Denotes the Frobenius norm, S is a subset of Rn×n. This master thesishas mainly studied centrosymmetric matrix set, centroskew symmetric matrix set,re?

为Frobenius范数， S为Rn×n中满足某约束条件的矩阵集合，本硕士论文主要研究了中心对称矩阵、中心反对称矩阵、自反矩阵、反自反矩阵、双对称矩阵、对称次反对称矩阵、对称正交对称矩阵、对称正交反对称矩阵。

Rare-earth doped borates(BO3),phosphates(PO4),vanadates(VO4), vanado-phosphate(YO4),borosilicate(LaBSiO5), and aluminate phosphors had been prepared by some different methods, such as high temperature solid state method, hydrothermal method, co-precipitation method and so on.

中文摘要：采用高温固相法、水热法、共沉淀法等不同方法制备了一系列掺稀土的稀土正硼酸盐BO3、正磷酸盐PO4，矾酸盐VO4，矾磷酸盐YO4和硼硅酸盐LaBSiO5及铝酸盐等荧光粉。

Rare-earth doped borates(BO3),phosphates(PO4),vanadates(VO4), vanado-phosphate(YO4),borosilicate(LaBSiO5), and aluminate phosphors had been prepared by some different methods, such as high temperature solid state method, hydrothermal method, co-precipitation method and so on.

采用高温固相法、水热法、共沉淀法等不同方法制备了一系列掺稀土的稀土正硼酸盐BO3、正磷酸盐PO4，矾酸盐VO4，矾磷酸盐YO4和硼硅酸盐LaBSiO5及铝酸盐等荧光粉。

The positive converter makes the load current to be positive in trigging control, while the negative converter is negative.

系统建模在实际确定的导通模式基础上加上两管换流模式和正负换组模式；触发控制中正组变换器使负载输入电流为正，负组变换器使其为负。

Just then there was a loud commotion behind them. Kathleen and Mark spun round. A big mass of scary looking men wearing blue tracksuits was heading right for them. And right in the middle of them was a torch!

就在此时，他们背后传来一阵骚动声，凯萨琳和马克转过身来，看到一大群穿著成套蓝色运动服、目露凶光的男子正朝著他们跑来，而他们正中间有一支火把！

As Mark Twain, that greatest of American satirists and proud son of Missouri, once wrote, Patriotism is supporting your country all the time, and your government when it deserves it.

当然，正因为美国并不完美，正因为美国的理念要求我们不断进步，爱国主义永远不能定义为忠於任何领袖，政府或政党。

To deal with this problem,a solution integrating two PWM rectifiers by parallel connection was presented.

推导正、负序电流与电网正、负序电压及直流功率的关系，并设计出控制系统。

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！