被磨损

Moreover, Seed dispersal also relies on animal and waterpower, which make seeds spread far distance, at the same time, the penetration of seed capsule can be improved by the dam age of animal's digestive system, so it can promote the seed germination.

此外，还有动物散布和水力作用的散布，使种子能传播较远的距离，同时种子被采食后，通过消化道的磨损使种皮的通透性提高，促进了种子的萌发。

A Source, inhibitors, and determinants of change. The system of biological replication does not work with ideal precision; random variations occur which , over the long run, would have a totally self-cancelling and , therefore, leveling and difference-eroding effect unless some factors of bias were operating selectively upon this bounty of variations. This is true of life, in general, and of all aspects of organisms.

a 改变的来源、限制、决定因素：生物的复制系统并不是百分之百精确的，随机发生的变异，最后都会全部自我销毁，除非这些混乱的因素能被选择性的运作与接受，这些击毁和磨损语言的变异才具有影响力，普遍来说，这就是真实的生命，就是生物体的所有面貌。

A few months with neither caretakers nor home had left them barely recognizable: once-glossy plating gone dull and scuffed, bright optics dim with perpetual hunger, Sideswipe's cocky grin replaced by a hardened, feral expression.

离开制造者和铸造厂后几个月，他们已经难以辨识。曾经光滑的电镀变得黯淡、磨损，曾经明亮的光镜因为没完没了的饥饿而黯淡， Sideswipe自鸣得意的笑容被冷硬凶猛的表情取代。

It must be free from any abrasion and imperfection and is polished with superfine abrasive paste.

它必须不能有任何磨损和残缺，被超细研磨抛光。

TCK Wire Rope Non-destructive Inspection System adopts the TCK unique technology of "weak magnetism",by means of quantitative inspection on loss rate of effective cross-sectional areal of actual bearing metal,arising from wire rope's internal or external breakages,abrasion,corrosion and fatigue and other defects by use of TCK wire rope defectoscope

TCK钢丝绳探伤仪采用本公司独创的&弱磁检测&技术，以国际公认的钢丝绳安全承载能力的校核原则为检测和判定依据，通过对在线钢丝绳内外部断丝、磨损、锈蚀、疲劳等各种损伤导致的实际承载金属有效截面积损失率的定量检测，正确评估被测钢丝绳的剩余承载能力和使用寿命，为用户提供符合标准和规范要求的安全使用与合理更新的科学依据，是有效预防钢丝绳断绳事故、合理降低钢丝绳用绳成本和科学提高钢丝绳运行效率的高科技保障。

English:Activated alumina is a porous solid material with high dispersion and large specific surface area, which has fine adsorption capability, fine pressureproof performance, fine wear resistant performance and fine heat-resistant performance, and as a result it is widely used as adsorbents.

产品简介：活性氧化铝是一种具有多孔性高分散度的固体物料，有很大的比表面积，既有良好的吸附性能，又有良好的耐压、耐磨损和耐热性能，因而，被广泛地用作高效吸附剂、干燥剂本品为白色，球状多孔性物质无毒、无臭、不粉化、不溶于水。

But they do fret that their government is growing ever more costly and intrusive, and they fear that liberal judges will do little to restrain it even when it acts unconstitutionally.

但保守主义者认为，这样会磨损政府的力量，政府的建设将常常被干扰，而且耗费会更多。他们担心，即便违宪行为的出现，自由派的法官将不会在限制上有所作为。

In the absence of such a high degree of cleanliness, adsorbed gases, water vapor, oxides, and contaminants reduce friction and the tendency to seize but usually result in severe wear; this is called "unlubricated" or dry sliding.

由于无法实现如此高的清洁度，摩擦面中的气体，水蒸汽，氧化物及其他污染物会在此过程中减少摩擦力及咬合的趋势，但也往往导致更严重的磨损；这种情况被称为&无润滑&或干摩擦。

As for the air percussive rotary drilling, because of its advantages of high ROP, long bit life, light WOB, reduced wear of drill collar, large cuttings, low drilling cost, low formation damage and no lost circulation, it has gained acceptance.

空气冲击回转钻井在一些特定的地层和井眼条件下具有高机械钻速、长钻头寿命、小钻压、较轻钻具磨损、大岩屑、低钻井成本、较轻油层污染和避免井漏等优点，因此很早就被钻井界接受。

The difficulty in NC grinding is that the size of the work piece cannot be invariable because the grinding wheel will be abraded continuously in the grinding process.

数控磨削加工的难点在于，由于砂轮在磨削过程中是不断磨损的，因此使得被磨工件的加工尺寸不能恒定。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。