求翻译：通常由10~100氨基酸分子脱水缩合而成的化合物叫多肽。它们的分子量低于10，000Da，能透过半透膜，不被三氯乙酸及硫酸铵所沉淀。是什么意思？

Usually from 10 to 100 amino acids dehydration condensation of compounds called peptides. Their molecular weight lower than 10,000 Da, through semi-permeable membrane, is not precipitated by trichloroacetic acid and ammonium sulfate.

Amino acids are usually from 10 to 100 and 60% reduction in molecular dehydration called peptide compounds. Their molecular weight less than 10,000 Da through a semi-permeable membrane, and can not be 3 The chloroacetic acid and ammonium sulfate precipitation.

Usually the compound which becomes by 10~100 amino acid member dehydration condensation is called the multi-peptides.Their molecular weight is lower than 10,000Da, can penetrate the semi-permeable membrane, not precipitates by the trichloroacetic acid and the ammonium sulfate.

Usually made of 10~100 molecules formed by dehydrating condensation of amino acid compounds called peptides. Their molecular weights lower than 10,000Da, through the semipermeable membrane, not to be of trichloroacetic acid and ammonium sulphate precipitation.

Usually molecular dehydration condensation of 10~100 amino acid compounds called peptides. Their molecular weights lower than 10,000Da, through the semipermeable membrane, not to be of trichloroacetic acid and ammonium sulphate precipitation.