Protect sb/sth from keep something or someone safe 保護 He was wearing dark glasses to protect his eyes from the sun.

他戴一副墨鏡以保護眼睛不受陽光的剌激。

This demonstrates that the formation and the growth of the crystal texture in the a-Fe/Nd2Fe14B nanocomposites result from the large temperature gradient normal to the free surface of the ribbons during the process of rapid solidification.

在激冷面各晶面法線方向的尺寸相近性爱在线视频不卡酷酷网，表明納米晶的形狀近似于等軸晶a片一级视频。a-Fe/Nd2Fe14B納米晶織構(gòu)的形成和生長受合金薄帶在凝固過程中熱流梯度的控制。

These results indicate that the expression of PrRP in hypothalamus,pituitary body,oblongata and thyroid gland may not be affected by the period of growth,that PrRP in adrenal gland maybe involved in regulating neuroendocrine and stress, and that PrRP in ovaries maybe promote the form of luteal cells,and further regulate endocrine of generation.

這些結(jié)果提示：小鼠下丘腦、垂體欧美性爱AAAAA视频、延髓和甲狀腺PrRP mRNA可能不受周期的影響91露脸经典对白，表達比較穩(wěn)定；腎上腺PrRP可能參與神經(jīng)內(nèi)分泌和應(yīng)激調(diào)節(jié)過程在线中文字幕亚洲日韩精品；卵巢PrRP可能參與促進黃體細胞的生成A片国产又色在线观看，從而對生殖內(nèi)分泌起到一定的調(diào)節(jié)作用。

When the geometric similitude ratio of the model to the prototype was determined and the loading similitude condition was satisfied by using similitude theory in structure modeling and experimental techniques, the prototype soil parameters were derived according to the model test result. The vibrating wheel compelled by harmonic exciting force was treated as a lumped mass vibrating system by equation equity method. By using this mechanical model in vibrating compaction, soil parameters were identified according to the equivalence of vibrating differential equation. The curve fitting method of amplitude versus frequency response was used for dynamic simulation based on the systematic dynamic equation of vibrating roller-soil system.

用相似理論與模型試驗法在確定了模型與原型之間的幾何相似比并滿足載荷相似條件后2020国产精品视频观看，根據(jù)模型試驗結(jié)果推導(dǎo)出了原型土體參數(shù)日韩精品欧美视频一区；用方程對等法把受簡諧激振力作用的振動輪等效為集中質(zhì)量振動系統(tǒng)，以此作為振動壓實過程的力學模型欧美性爱在线视频播放，根據(jù)振動微分方程的等效條件進行識別国内体内she精视频乱码；用幅頻特性曲線擬合法以振動壓路機－土壤系統(tǒng)動力學方程為基礎(chǔ)，用計算機進行動態(tài)仿真中日韩欧美一级高清视频。

It is shown that the effect of dynamic thermal tensioning by trailing intensive cooling is greatly influenced by the heat-dissipating conditions of the fixtures.Without uniform preheating it is difficult for trailing intensive cooling alone to create a saddle-shaped temperature field and the mechanism of reducing distortion is equivalent to the decrease of welding heat input. While combined with uniform preheating ,dynamic thermal tensioning comes into being to some degree and the effect of reducing distortion increases obviously.

研究表明亚洲Aⅴ永久无码天堂，由隨焊激冷造成的動態(tài)溫差拉伸減小焊接變形的效果受夾具自身散熱條件的影響較大：不采用整體預(yù)熱時，難以造成馬鞍形溫度場多人伦交性欧美在线观看，此時減小焊接變形的機理主要是焊接線能量的等效降低A黄色网；采用整體預(yù)熱后，能夠造成一定程度的溫差拉伸亚洲精品国产AⅤ综合第一，減小焊接變形的效果明顯提高无遮拦av。

These errors together with the self-induced vibrations and forced vibrations affect the measuring results, and cause dynamic errors.

指出這些誤差和測量機組成部件的自激振動、受迫振動等將對測量結(jié)果產(chǎn)生影響色色大综合，引起動態(tài)誤差黄色视频在线一级视频。

Peppermint Oil is very popular for relieving upset stomach, indigestion, flatulence, symptoms of irritable bowel syndrome and travel sickness.

薄荷油非常受歡迎，以紓緩胃痛国产黄色导航，消化不良768av.com，脹氣，癥狀的腸易激綜合癥和旅行疾病女同免费一区二区。

The results attested that Yi Shen Granule has the functions of enriching qi , nourishing yin, removeing blood stasis and clearing away turbidness.

增強機體耐力欧美一级A一级a爱片牲交高清、抗應(yīng)激能力、非特異性免疫功能和體液免疫功能手机在线a视频，減輕機體因受外界因素刺激而加重病情的程度久久性AV。

The electrons on a surface state induced by two-photon absorption (2PA) can be trapped by pyridine or 2, 2'-bipyridine, and have more long lifetime, which is helpful for increasing the third-order nonlinearities.

雙光子吸收誘導(dǎo)產(chǎn)生的表面受陷電子能被Py或2，2'-bPy捕獲国产真人一级做a片，并且具有較長的壽命午夜精品在线，這有利于對激子吸收的漂白，從而提高了三階非線性亚洲欧美中文日韩另娄变态。

These HBM is used to predict the resonant response of a frictionally constrained two degree of freedom oscillator.

故當激振力為單諧波函數(shù)時亚洲免费黄色三级录像，進行兩自由度系統(tǒng)受迫振動響應(yīng)分析無論使用頻域法還是時域法都能得到一致的結(jié)果欧洲AV在线不卡。