求翻译：1．铅酸蓄电池性能可靠而价廉、紧凑。平均寿命仅为2～2.5年，在寒冷气温下更短。在安全方面，铅酸蓄电池溶液可用胶体来代替。充电时放出的氢气有爆炸的危险，需用密封装置解决。它是技术最成熟的电池，为大多数的电动汽车选用，但是当其过充电、过放电时寿命会缩短。是什么意思？

A. Lead-acid batteries are reliable and inexpensive, and compact. The average life expectancy of only 2 to 2.5 years shorter in cold temperatures. In terms of security, lead-acid battery solution available colloid instead. The release of hydrogen charging the danger of explosion required seals to so

1) lead-acid battery performance reliable and inexpensive, compact. Average life expectancy was only for 2 to 2.5 years in cold temperatures and shorter. In the area of security, lead-acid battery available colloidal solution instead. When the hydrogen charging out there is a risk of explosion, the

1. lead-acid battery performance reliable and is moderately-priced, is compact.The mean lifetime is only 2~2.5 years, is shorter under the cold temperature.In the security aspect, the lead-acid battery solution available colloid replaces.When charge emits the hydrogen has the detonation danger, need

1. Lead-acid battery performance is reliable and inexpensive, compact. The average life expectancy was only 2~2.5 years, shorter in cold temperatures. In the area of security, solution gel can be used to replace lead-acid batteries. Charging hydrogen released when there is danger of explosion, requi

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