high speed film meaning in Chinese

高速感光胶片

I would try any type of film just to see what it would do , color , b & w , negative , transparency , high speed films
我曾尝试各种胶片，感觉不同的效果，彩色的，黑白的，负片，反转片，高速胶片。
Usually high speed films are desirable . however , for most films , the maximum exposure is around 45 minutes after which the gain will be minimal
底片需用较高速的，通常曝光四十五分钟后，效果已差不多到达极限，更长曝光增益不大。
Fix a camera onto a sturdy tripod , load it with a high speed film , set the focus to infinity , set the shutter to " b " , aim at the target area and press the shutter by the shutter release cable
在摄影机内装上一卷高速底片，然后把摄影机固定在一个坚固的三脚架上，距离调校至无限远，快门调至b掣，对著要拍摄的天区，按下快门绳曝光即可。
Load the high speed film , open the lens to its lowest f number and focus at infinity . select b for the shutter setting . mount the camera on a tripod and aim it at the desired region
用广角镜或标准镜的相机，装上快速底片，光圈全开，镜头调至无限远，快门选b掣，用脚架支持相机指向欲摄的天区，用快门绳打开快门，曝光几分钟到一小时的固定摄影法，会把偶然出现于镜头前方的流星摄入底片。