两层的

Based on diverse working condition featured by dust,abrasiveness,high temperature and strong magnetic field,two or three layers of insulation is considered when designing.

根据电解车间内多粉尘、磨损性、高温度、强磁场的恶劣工作条件，有针对性地设计了两层至三层绝缘层。

In this way,the four layer nonlinear affine model of the missile is gotten also.

本文应用优化线性理论，对这两层模型进行了仿射型处理，这样就得到了飞航导弹的四层非线性仿射型模型。

Most angiosperm ovules possess two integuments, while gymnosperms usually have only one.

大多数被子植物的胚珠有两层珠被，而裸子植物通常只有一层。

The simulative results showed that the total heating loads in solar house were 24.4 % less than those in the reference house of no auxiliary heat sources in the whole heating period in Shenyang when indoor air temperature was 18℃ in the houses with ideal auxiliary heat.The effects of operation,structures and performance parameter of the solar thermal storage wall were analyzed.

无内通风口式集热蓄热墙冬季空气间层是密闭的，发挥了重质墙体的蓄热作用和空气间层的热阻作用，依靠导热向室内传递热量；有内通风口式集热蓄热墙依靠空气间层与室内的对流换热和墙体的导热两种方式向室内传递热量。

In high-impedance current-input inverting configurations, where a length of shielded wire is used to guard the lead from the current source to the amplifier's inverting input, the guard should either be driven by a buffer at the same potential as the non-inverting input, or be tied directly to the non-inverting input, with a second outer shield connected to the signal's reference point.

如果将运放接成反相放大器的形式，并且在信号源与运放反相端之间用一段带有屏蔽层的导线来充当的防护罩，那么对防护罩的处理有两种选择：要么用一个缓冲跟随器来驱动，跟随器输出端与运放同相端电位相等，而且除跟随器外，防护罩不与其他点接触；要么将防护罩直接接到运放的同相端，然后在其外面加一个屏蔽层，并且将屏蔽层连接到信号的参考电位。

Self-buckled kerbstones consist of two different layers of compound cement. They are of many kinds of designs and colors. On the outer layer, there are illuminating materials made by special materials. The inner layers are made of common cement, so they are low in price. At the two ends of the kerbstone, there are concave and raised troughs for self-buckling. So they are convenient in installment. Different size of holes for draining water can be drilled according to actual situation.

自扣式侧石是由两层不同颗粒级配比的复合混凝土构成，具有多种图案和色彩，面层附有由特殊材料制作成的发光材料，内层为普通混凝土，成本低廉；侧石的两端有凹凸卡槽自扣连接，安装方便，不易沉降和倾斜；还可根据不同需要的距离可在不同位置上留有大小不同的排水孔，雨天能够及时排除路面积水，从而丰富花池，花坛及道路两侧绿化带水源。

These results offer new insight into the study of the nacre formation.

对同一三角帆蚌贝壳珍珠层，文石晶体的这两种择优取向的程度随壳结构位置的变化而变化，反映了三角帆蚌珍珠层结构的不均匀性，为研究珍珠层的成因提供了新的思路。

Which of the following are associated with the application layer of the OSI model? Choose two.

解释一下：在 OSI 7层模型中位于应用层的应用有 telnet 和 ftp 这两种应用。

Results The lateral wall of CS consisted of two layers: outer layer was cerebral dura mater, and inner layer was lamellar sheath of the oculomotor nerve,trochlear nerve and trigeminal nerve. The stratum profundum of paries lateralis in CS was incomplete (62.5%), they were in the front of the Mullan triangle or in the back of Parkinson triangle.

结果 海绵窦外侧壁为两层结构，外层为硬脑膜，内层为动眼神经、滑车神经和三叉神经分支的神经鞘膜，外侧壁深层不完整者占62.5%，均在Mullan三角前部或Parksin三角后部。

Methods From March 1994 to December 2002, on the basis of the ordinary operative method, Pemberton method was improved for 48 cases of DDH 49 articulatio coxae which had superficial and small acetabula but big heads of femur. Osteotomy points were moved higher to enlarge area of bone flap turned over. A piece of full thickness ilium including periosteum was removed as a free bony graft. Capsula articularis growing thicker was made into 2 layers, of which the inner layer was used to tighten articularis and the outer layer was used to stabilize bone flap.

1994年3月～2002年12月，对DDH髋臼浅而小、股骨头大的48例49个髋关节，在通常术式的基础上，对Pemberton截骨术式进行改良，将截骨点上移，扩大翻转骨瓣面积；取髂骨全层骨板连带附着的骨膜植骨；增厚的关节囊制成两层，内层紧缩关节，外层稳定骨瓣。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失