查询词典 twin-screw

The simulation study shows that linear polarization sensitivity of silvered orthogonal twin mirrors is better than that of aluminum or aurum mirrors at the range of 0.4μm～10μm, and the silvered orthogonal twin mirrors have less influence on polarization ratio than those of aluminum and aurum mirrors.

模拟计算结果显示：在0.4μm～10μm波段内，非理想正交镀银反射镜的线偏振灵敏度优于铝、金等正交反射镜，且对光束偏振度的改变最小，因此正交镀银反射镜在高精度偏振遥感探测中值得广泛应用；若把角度误差控制在0.5°内，则正交镀银反射镜的偏振特性对偏振遥感器的辐射度和偏振度影响很小，具有较好的消偏性能。

Embryo development and origin of twin-embryo of autotetraploid rice with twin-embryo seedlings were observed and verified.

利用激光扫描共聚焦显微技术对同源四倍体双胚苗水稻的受精过程、胚胎发育过程和双胚来源进行观察鉴定。

Asked the American people why the United States Air Force equipment is extremely advanced and the security sector can not stop the hijacked aircraft, but also some scientists questioned: jet flame produced by combustion is not sufficient completely destroyed the structure of the twin towers, can not lead to the twin towers Finally, all the collapsed World Trade Center in ruins and found a high temperature molten metal is caused by thermite, it is very likely infer a person the use of explosives blew up the twin towers.

美国民众问道，为什么装备极其先进的美国空军和安全部门无法阻止被劫持了的飞机，也有科学家质疑：喷气式客机燃烧时产生的火焰不足以完全破坏世贸双塔的结构，不能导致双塔最后全部坍塌，而且在世贸中心废墟上发现的熔化金属是一种高温铝热剂所致，因此推断极有可能是某人使用炸药炸毁了双塔。

After transfer of 13 twin blastocysts to recipients, 3 and 2 twin fetuses were obtained, These findings indicate that monozygotic twin mice can be produced more efficiently from F1 embryos than from CD-1 embryos.

在添加生长因子与未添加生长因子的胚胎中，分别有92％和86％的胚胎发育为孪生囊胚。13对胚胎移植后，分别产生了3对和2对孪生小鼠。

The morphology of polyembryonic rice IR36-Shuang could be differentiated into 2 types: uncomplete twin seedlings and complete twin seedlings. There were 2 types in uncomplete twin seedlings, i.

IR36-双在双胚苗性状的表现形态上有其特异性，在同一纯合株系的群体内双胚苗的苗位有非完全双苗和完全双苗两种类型。

Many nanotwins were formed in this triangular region. HREM observations showed that nanotwinning dislocations were nucleated at noncoherent twin boundaries with the local stress concentration, and the nucleation is related to the dislocation dissociations at the boundary ledges. The proceeding of these nanotwins is the homogenous shears of 1/6 [11〓] twinning dislocations, which is that the trailing 1/6 [112] twinning dislocations repel the leading twinning dislocations to proceed in the (111) planes. Therefore, twinning dislocations at the twin tip appear to be on one side of twin, forming a noncoherent twin boundary with a semilenticular shape.

在此三角区域内发现许多纳米孪晶的存在，通过高分辨电镜手段观察到纳米孪晶中的孪生位错是在具有原位应力集中的非共格入射孪晶界上形核的，纳米孪晶的形核与界面的台阶位错及其位错分解反应有关，纳米孪晶的行进是1/6[11〓]孪生位错均匀切变机制，即每一个（111）孪生面上对应一个孪生位错，其中拖尾的1/6[11〓]孪生位错将会推动领先的孪生位错行进，于是在形变孪晶头部位置的孪生位错排列常常出现在形变孪晶的一侧界面，形成一个半透镜状的非共格孪晶界。

By means of analysis on the construction alternatives using twin drilling jumbos,the paper summarizes the rapid excavation technology for the double-lane tube of twin tube highway tunnels by means of twin drilling jumbos and other supporting machinery and equipment,which proivdes a new concept for the rapid excavation of long and huge tunnels in the future.

介绍了瑞典353E凿岩台车在重庆石忠高速公路方斗山隧道中的应用情况，并通过对双台车施工方案的的分析，总结了在高速公路双车道隧道中单洞利用双台车及配套设备实现快速掘进的施工技术，为长大隧道提供了一种快速施工的思路。

The lower part of a pulley block .Shaped like a pulley .Twin executives; twin cities; a twin bed.

两个对等的执行人员；姐妹城市；一对配对单人床中的一个

To be one of twin offspring.Twin executives; twin cities; a twin bed.

两个对等的执行人员；姐妹城市；一对配对单人床中的一个

In the northern Russian city of Pechora, a very special double wedding took place, when two twin brothers married two twin sisters. Military officers Alexei and Dmitry met twin sisters Lilia and Liana a year ago. We'll leave you with these images. Thank you for watching Da Ai Headlines. Good bye.

俄罗斯北方的白绍拉市举行了一场相当特别的婚礼，一对双胞胎兄弟娶了一对双胞胎姊妹，当军官的艾力克西与狄米崔兄弟，一年前遇到了丽丽亚与莉亚娜姊妹，一起来看看，感恩收看，再会。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了