封的例句大全

However, these very practical technology, are for feudal ruling class service.

但是, 这些实用性很强的技术, 都是为当时封建统治阶级服务的.

The wrong thing to do is to start a new message.

错误的做法是创建一封新邮件.

Github was temporarily blocked in China in 2013.

2013年，Github网站在中国曾被临时封禁。

The results indicate that the gap between axile bush and cylinder influences the shearing stress very much;

结果表明：O形密封圈缸筒和轴套的间隙对剪切应力的影响很大；

Six kinds method the main body of a book is changed right away: Avianize the condition closing a problem;

本文就变化的六种方法：弱化封闭题的条件；

They opposed feudal system and demanded city autonomy. Autonomous city became a free place. So the townspeople and the free city prepared environmental basis and mass basis for the emergence of the Franciscan.

他们反对封建制度，要求城市自治，自治的城市成为一个自由的地方，为法兰西斯修士会的出现准备了环境和群众基础。

For example, in order to prevent secondary pollution, even the use of sewage is not Valve asbestos packing and gasket sealing.

例如为了防止二次污染，即使是排污阀也不采用含石棉的密封填料和垫片。

Applicable to all types of wire clamp and fixed ribbon weaving, or armored cable, for the need for cables and the core wire part of the flameproof enclosure up to IP66 sealing gas place.

适用于夹持和固定各种类型的钢丝编织或带状铠装电缆，用于必须对电缆芯线部分隔爆及外壳气体密封达IP66的场所。

1978-The first email spam of history was sent by a DEC marketing representative to every ARPANET address on the west coast of the United States.

1978年的今天，史上首封垃圾电子邮件是由美国的DEC公司的一名市场销售代表，向ARPANET网络上每一个地址发送的。

Therapeutic effect of tretinoin compound ointment in arsenical keratosis

复方维甲酸软膏封包治疗砷剂角化病近期疗效观察

Methods 311 teeth of 293 cases which were suitable to be sealed as varied time 1~ 12 days were treated with arsenous oxide to observe the condition of pulp deactivation and percussion pain when return.

方法对293例、311颗适合失活的恒磨牙进行三氧化三砷失活，封药时间为1~12d不等，观察根髓失活情况及患牙复诊时叩痛变化情况。

Methods: Determining the entrapping rate of arsenous oxide in liposomes by new silver salt method, we studied the best preparing formula of liposomes by the orthogonal test design.

方法：采用正交设计，研究制备脂质体的最佳配比；新银盐法测定脂质体的包封率；

Objective To study the best seal time for permanent molar deactivated with arsenous oxide as the quick deactivator.

目的研究三氧化二砷快失活剂失活恒磨牙的最佳封药时间。

The products consist of asbestos, rubber and packing, and are make by compression.

本产品是选用优质石棉、橡胶及填料，经过滚压制成的衬垫密封填料。

Leakage in Asbestos Base Packing during Rod Motion

石棉基填料密封在杆运动时的泄漏

Experimental Study on Emulsified Asphalt Material for Lower Seal Coat

乳化沥青下封层材料的试验研究

On hot asphalt seal coat with the single particle size gravel technology

浅谈热沥青加单一粒径碎石封层技术

Compound Modified Emulsion Asphalt slurry Seal Coat Technology Research

复合式改性乳化沥青稀浆封层技术的实验研究

Analyzed the influence of the hydrodynamic pressure on the two types of rubber asphalt gravel seal coat in use of "multi-functional asphalt mixture dynamic permeable test instrument" and "asphalt pavement materials moving water pressure flushing tester".

利用自主研发的多功能沥青混合料动态渗水试验仪及沥青路面材料动水压力冲刷试验仪，分析了动水压力对这两种结构类型的橡胶沥青碎石封层的影响。

Close-down is one of the main means in the management of marine dumping site.

海洋倾倒区封闭是海洋倾废管理的主要内容之一.