两面光

For example, if I wanted a board, I had no other way but to cut down a tree, set it on an edge before me, and hew it flat on either side with my axe, till I had brought it be thin as a plank, and then dub it smooth with my adze.

譬如说，做木板。我先砍倒一棵树，把树横放在面前，再用斧手把两面削平，削成一块板的模样，然后再用手斧刮光。

For example, if 1 wanted a board, I had no other way but to cut down a tree, set it on an edge before me, and hew it flat on either side with my axe, till I had brought it to be thin as a plank, and then dub it smooth with my adze.

譬如说，做木板。我先砍倒一棵树，把树横放在面前，再用斧手把两面削平，削成一块板的模样，然后再用手斧刮光。

By forming simultaneously photosensitive layers on both-sides of cellulosetriacetate film with chemical reaction, we obtained a holographic recording film withstratified sensitivity─dichromated cellulose triacetate.

通过化学反应，在三醋酸纤维素酯片基的正反两面同时生成具有感光活性的光敏层的方法，获得了一种具有叠层光敏性的全息记录软片：重铬酸盐一三醋酸纤维素酯。

The paper machine comprises a headbox (100), a gap former (200), a press section (300) which comprises at least one extended nip press, a pre-dryer section (400) in which a web is dried applying at least cylinder drying (R1-R7), a pre-calender (500) in which the web is pre-calendered, at least one portion which is formed of a coating station (600) and an after-dryer section (700) and in which the web is coated on both sides applying a film coating method or a non-contact coating method and dried applying at least contact-free drying (710), an end calender (800) in which the web is calendered, and a reel-up (900) in which the web is reeled.

所述纸机包括流浆箱(100)；夹网成形器(200)；包括至少一个延展压区的压榨部(300)；至少采用烘缸(R1-R7)对纸幅进行干燥的预干燥部(400)；对纸幅进行预压光的预压光机(500)；由涂布站(600)和后干燥部(700)形成的至少一部分――其中，纸幅的两面都用薄膜涂布法或非接触涂布法对进行涂布，且至少采用无接触干燥(710)对纸幅进行干燥；对纸幅进行压光的端部压光机(800)；以及卷取纸幅的卷取部(900)。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。