To control the Bragg wavelength, a lock-in amplifier is used, and the output wavelength is locked at the C2H2 absorption line of 1530.37 nm.

利用鎖定放大器閉環(huán)控制布拉格波長(zhǎng)91人人超碰人人超碰人人超碰，將激光器的輸出波長(zhǎng)鎖定在乙炔氣體1530.37nm的吸收峰上桃花在线观看国产电影，24h內(nèi)頻率穩(wěn)定度達(dá)10^-891在线精品。

And the wall of test workshop is completely paved with 25mm thickness stainless steel perforated acoustic panel, 50mm cavity; using the sound lock double sound insulation door, the sizes are 2.4×1.64 m91精品免费热播、2.149×1.04 m respectively; Double layer 3×8 mm thickness bulletproof glass sound insulation window, 50mm cavity; air inlet uses dissipative muffler, the size is 5×3×2 m, sound splitter is 150 mm thickness stainless steel protective facing.

試車(chē)間墻面滿(mǎn)鋪25 mm厚不銹鋼穿孔吸聲板亚洲欧美国产国产综合二页，50 mm安裝后空腔国产区一区在线；采用聲閘雙重隔聲門(mén)，尺寸分別為2.4×1.64 m一级a性色生活片厕所偷拍、2.149×1.04 m免费A级毛片群久久免费；雙層3×8 mm厚防彈玻璃隔聲窗，50 mm空腔線上A片；進(jìn)風(fēng)口選用阻性消聲器一级国产精品久久久久无码AV，尺寸為5×3×2 m，消聲片為150 mm厚不銹鋼護(hù)面欧美性爱在线播放网站。

The technology Deep lock palace of the princess, only to favorite adorer prohibitive, difficult to become attached to.

該技術(shù)深鎖皇宮的公主AV网站免费不卡观看，只能讓鐘情愛(ài)慕者望而卻步午夜福利97，難以結(jié)緣。

When the moment made by material on turning plate is greater than that of heavy hammer and rocker, the disc will open adown to discharge. After discharge the moment made by heavy hammer and rocker will drive disc close quickly to realize locking air. Because the structure of valve is two-layer, there is always one disc in pipe that is in close condition. So it can discharges and lock air at the same time.

即當(dāng)作用于翻板上的物料產(chǎn)生的力矩大于重錘搖桿產(chǎn)生的力矩時(shí)亚洲一级av无码中文毛片，閥板打開(kāi)卸灰一级特黄AAA免费看直播，一旦積灰卸去后，重錘與搖桿產(chǎn)生的力矩使閥板迅速關(guān)閉超碰在线91av，實(shí)現(xiàn)鎖氣是由于本閥采用的是雙層結(jié)構(gòu)国产亚洲精品麻豆一二三区，因而使管道上閥板始終有一個(gè)是關(guān)閉狀態(tài)，可使卸灰與鎖氣同時(shí)達(dá)到目的日韩午夜福利理论片。

Futures market is a product of the market economy develops to a certain stage. It is also one of the most powerful tools serving the spot trading in finance market. Corn futures market's unique functions of price trend discovery and hedge enable the corn farmers and relevant enterprises to know in advance the long-term price trend, and formulate the correct business strategy according to their own situation, and lock the risk and profit ahead of time.

期貨市場(chǎng)既是市場(chǎng)經(jīng)濟(jì)發(fā)展到一定階段的產(chǎn)物有色永久无码视频在线观看，又是金融市場(chǎng)中為現(xiàn)貨服務(wù)最有力的工具之一；玉米期貨市場(chǎng)特有的遠(yuǎn)期價(jià)格發(fā)現(xiàn)功能和套期保值功能可以使農(nóng)民A级手机免费在线视频、相關(guān)企業(yè)提前了解玉米的遠(yuǎn)期價(jià)格走勢(shì)免费无码十八禁污污网站，并根據(jù)自身的情況，制定正確的經(jīng)營(yíng)策略看欧美黄片视频，提前鎖定風(fēng)險(xiǎn)和收益午夜成年男人免费网。

In the meantime, private equity investors will have to agonise over whether to accept lock-ups on the sale of their shares and other exit restrictions to appease Beijing's concerns.

同時(shí)，私人股本投資者將不得不費(fèi)心考慮是否接受股份禁售期及其它退出限制91avzaixian，以安撫北京的憂(yōu)慮一级AAAAA大黄片。

It seems like some air lock during combustion cycle makes it.

這就像一些空氣中燃燒循環(huán)，似乎使鎖爱情岛论坛亚洲自拍。

The air lock should be of a size which enables the effective surface decontamination of materials being passed through it.

氣閘室的大小要滿(mǎn)足對(duì)通過(guò)的原材料的表面進(jìn)行有效去除污染的要求黄片久久久动漫。

In the air lock, Meng Fan few wings, fly past, fell on the ground.

在空中鎖定目標(biāo)，猛扇幾下翅膀97大学生情侣酒店自拍亚洲精品，飛了過(guò)去国产一级A片XXXXx，落在地上。

In time, the seats of rotary air lock valves leak.

而在這個(gè)時(shí)候国产麻豆区精品系列在线，回轉(zhuǎn)式氣塞閥門(mén)的閥座就會(huì)出現(xiàn)泄露欧美日韩视频在线播放。