porous GREGMAT雅思

The shell has to be slightly porous to enable oxygen to pass in.

外壳不得不有些细的以便能使氧气通过。

he ran through a porous home defence to score easily.

他跑过洞百出的本垒防线，轻松地得了分。

A convolution integral factor method is introduced to eliminate the checkboard pattern and porous material in the topology optimization.

通过数值计算验证了理论和算法的有效性;

Porous ceramic materials on the base of strontium zirconate were developed with zirconium dioxide,baddeleyite powder,and granular polysterol.

采用二氧化锆、斜锆矿粉、碳酸锶及粒状聚苯乙烯制成了锆酸锶陶瓷材料。

Besides, immediately following the implantation of the cementless porous-coated hip endoprosthesis, no bonding exists between the femur and the prosthesis.

而洞被覆式人工髋关节刚植入后，髋关节与大腿骨之间亦呈未结合状态。

SEM showed the porous structure of the CTCP and the seeded BMSCs were well attached to the CTCP with cytoplasmic extensions and lamellipodia.

扫描电镜下可见材料呈网状结构，兔骨髓基质细胞紧密贴附在材料表面，细胞可沿材料的隙活跃生长。

A uniform magnetic field acts perpendicular to the porous surface which absorbs the micropolar fluids with a suction velocity varying with time.

均匀磁场垂直作用于可以吸收微极流体的表面，吸引速度随着时间而变化。

Adsorbable gases can be separated by porous ceramic membranes under the capillary condensation mechanism of membrane separation, on which prior study was only limited to pure components.

陶瓷膜在毛细管冷凝传质机理的作用下能够有效地分离吸附性气体。而毛细管冷凝膜分离传质机理的研究还很不充分,目前,文献报道仅局限于纯组分气体的传质模型研究。

Objective To quantitatively measure the new bone conducted by porous block β-tricalcium phosphate(β-TCP) implanted in the defects of calvarium of rabbits.

目的通过块状β-磷酸三钙(β-TCP)对兔颅骨缺损的修复,定量测量其在体内引导成骨的量。

If you look over the element ratios we measured, you might conclude that our comet particles look more like chondritic porous IDPs than CI chondrite meteorites.

如果你查看我们测定的元素比率，你将得出结论——我们的彗星颗粒看上去更接近球粒陨石IDPs而不是CI球粒陨石。

3) Some people have reported seeing more semivolatile elements in a class of interplanetary dust particles (IDPs) called “chondritic porous” IDPs.

曾有人报告在类被称作“球粒陨石”的行星尘埃颗粒（IDPs）中见到了较的半挥发性元素。

As much as 40% of Hyperion could be porous, according to research led by Dr Peter Thomas of the Center for Radiophysics and Space Research at Cornell University published today in the journal Nature.

康乃尔大学电波物理与太空研究中心的彼得·托马斯主持研究了土卫七。今天发表在《自然》杂志上的研究成果表明，达40%的土卫七表面为地形。

The structure of artificial bone was designed according to the long bone ofpeople, the outer was compact layer, the inner was porous spongiosa layer.

仿人长干骨的结构梯度进行材料设计：外层为致密层，内层为松质层。采用HAP粉末为原料，添加定量的生物玻璃，来制备梯度HAP人工骨。本研究首次采用自燃烧法合成了纳米级HAP粉末。

RESULTS:SEM showed the porous structure of the CTCP and the seeded hPDLCs were well attached to the CTCP with cytoplasmic extensions and lamellipodia.

结果:扫描电镜下可见材料具有良好的网状结构,人牙周韧带细胞伸出伪足样突起,紧密贴附在材料表面,细胞沿材料的隙边缘生长并连接成片。