气孔

Cd inhibited the absorption of Mg and Mn in roots. However, Cd could stimulate the absorption of Fe in roots. Moreover, Cd inhibited the absorption and utilization Mg, Mn and Fe in leaves. 4. Cd inhibited the photosynthesis of Populus clones. Cd showed no significant inhibition to net photosynthesis rate, stomal conductivity and transpiration rate versus the control, under 10μM Cd treatment.

Cd胁迫还对杨树光合作用产生影响，低浓度Cd对杨树光合速率无影响，中高浓度Cd对杨树净光合速率、气孔导度和蒸腾速率等具有抑制作用，而且随着处理时间的延长和Cd胁迫浓度的提高而逐渐加大。

To this diecasting die cavity,by using inside notch core-pulling mechanism,cope with the core-pulling problem of inside notch parts; adopting insert block structure is favourable to the snapout of gas in the course of diecasting,which solves the problem of cast air holes and conspicuously increase the qualified rate and economic benefit of diecasting.

该模具型腔采用内凹抽芯机构，解决了内凹零件的抽芯问题；采用镶块结构，有利于压铸过程中气体的排出，解决了铸件气孔问题，显著提高了压铸件的合格率和经济效益。

Where else can you witness such marvels of Mother Nature as a tremendous icecap and several glaciers, spouting geysers and steaming solfataras, volcanoes, raging rivers and magnificent waterfalls, a multitude of birds, cavorting whales just offshore and many other surprises.

在这里，你亲眼见证大自然宛如一个巨大的冰盖，上面冰川嶙峋，高涌的喷泉，蒸发的硫质喷气孔，成群的火山，奔腾的河流，壮观的瀑布，鸟类集群，海面上跳跃的鲸鱼，还有其他想不到的惊喜都在等着你。

An improvement on the die casting technology of aluminium hub includes drilling hole at the position of die, where the function of die is not affected, for preventing gas from coming into molten aluminium, mounting safety valve to the exhaust opening of die casting case for keeping proper pressure to save electricity and shorten die casting time, and increasing the water-flowing area of cooling disk or ring for higher cooling effect.

一在不影响模具本身功能部位钻孔增加排气通道，解决了压铸过程中产生的气体进入铝水问题。可使铝轮减少气孔。在压铸机箱体排气口部位，安装安全阀，能使压铸机箱体内保持适当的压力，工作时少进气、少排气，起到节电不堵浇口，缩短压铸时间，提高产量。冷却盘、冷却环改进后，增加了过水面积，提高了冷却效果。

Silicones are absorbed better than wax treatments and don't tend to clog pores or inhibit leather breathability as much.

硅树脂类比蜡类处理剂的吸收能力更强，并且不会阻塞气孔或者抑制皮革的透气性。

Homogenity: The items must be free from shrinkages, sand/slag and gas porosities.

铸体必须无缩孔，沙眼/渣眼和气孔。

The reasons leading to them were given and the solutions were put forward. Through reducing the pouring velocity, the air gas entrapments and partial shrinkages can be elimiated effectively.

发现通过降低浇注速度，可有效地消除在浇铸过程中所产生的气孔和部分缩孔缺陷，以获得高质量的镁合金铸件。

On the contrary, a kind of coarser structures and some metallurgical drawbacks, such as micro-holes and shrinkages, will appear in the mould-cast alloy thus mechanical properties of the latter is poorer than that of the former.2 When in different part or the casting thickness not equal, the die-casting magnesium alloy AZ91D has different mechanical property.

压铸镁合金AZ91D的组织由均匀细小的近球状组织和细小的放射状枝晶组成，相比较而言，砂型铸件组织粗大，易产生气孔、收缩等缺陷，故而其力学性能比压铸件要差。 2。压铸镁合金AZ91D铸件依部位和厚度不同，力学性能也不同。

So tiny little air sacs become bigger ones - and they're less efficient in transporting oxygen.

因此的纤细的气孔壁异常扩大，这样就不能有效的转换氧气。

The lung can't grow new walls for these air sacs.

而肺部却无法产生新的气孔壁。

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